Question and Answer

Results

#1. A foreign student in the Nalanda University is most likely to mention about which of the following empires in India in her records on India 1. Gupta 2. Pala 3. Pushyabhuti Select the correct answer using the code given below

D

Statement 1 is incorrect.
Jainism does not support belief in a creator deity. According to the Jain doctrine, the
universe and its constituents and actions are governed by universal natural laws.
Statement 2 is incorrect.
Anekantavada is a core philosophy of Jainism. It states that the ultimate truth and
reality is complex and has multiple aspects. The origins of anekantavada can be
traced back to the teachings of Mahavira

#2. Consider the following statements : 1. World is created and maintained by the first Tirthankara according to Jain Philosophy 2. Anekantavada is a core philosophy of Buddhism Which of the above given statement(s) are correct?

#3. Which of the following statements regarding North American continent is/are correct? 1. The Mt Aconcagua is the highest peak in North America 2. It is the third largest continent by area. 3. Barents sea forms a marginal water body along the North American continent Select the correct answer using the code given below

A

Statement 1 is incorrect.
Mt Aconcagua is the highest peak in South America, located in the Andes mountain range, Argentina.
Denali (Mount McKinley) is the highest peak on the North American continent. Statement 2 is correct.
Continents ordered from largest to smallest in area are: Asia, Africa, North America, South America, Antarctica, Europe, and Australia.Statement 3 is incorrect. Barents Sea forms a marginal water body of the Arctic Ocean, located off the northern coasts of Norway and Russia.

#4. Which of the following electrical device needs to be used for converting an Alternating Current (AC) to a Direct current (DC)?

B
Transformer: Transfer energy from one AC circuit to another AC circuit. Rectifier: Converts AC to DC by allowing current to flow in one direction only. Solenoid: Coil of wire used as an electromagnet
Inverter: Converts DC to AC

#5. The round, palm-sized animals known as Sea squirts (Ascidians) are recently in news for its application in

B
Sea squirts (Ascidians) can filter particles from ocean and store them in its tissue. Their habit of clinging to ships and invading beaches could help measure plastic pollution as it can filter tiny particles from the ocean and store them in its soft tissue. Recently researchers have found that ascidians can thrive in dirty industrial areas and pristine waters alike, allowing them to detect and analyse waste and its impact in various regions.

#6. Identify the correct statements related to Gene editing technology which often comes in the newspaper 1. Recent experiments suggest that gene editing can be done inside the human body also 2. Gene editing occurs also as a natural process without artificial genetic engineering. Select the correct answer using the code given below

C
Statement 1 is correct.Recently Scientists made first ever attempt at gene editing inside the body. This new therapy will permanently alter DNA, with no way to alter mistakes editing may cause
– but offers chance to tackle currently incurable metabolic diseases. Statement 2 is correct.
Genome editing occurs also as a natural process without artificial genetic engineering. The agents that are competent to edit genetic codes are viruses or sub viral RNA-agents.

#7. Global Futures Report is published by:

C
The Global Futures report presents views of 114 renowned energy experts from around the world, on the feasibility and challenges of achieving a 100% renewable energy future.

#8. Potassium chlorate is widely used in the Indian industries as a raw material. Which of the following are less likely to be an application of Potassium chlorate?

D
Potassium chlorate is a chemical compound that contains chlorine, oxygen, and
potassium. In its pure form, it is white and crystalline in appearance. Potassium
chlorate is commonly used: to prepare oxygen, disinfectant, in safety matches, as an
oxidizing agent, in fireworks and explosives, and in fruit cultivation.

#9. Consider the following statements: 1. The maximum strength of the council of ministers shall not exceed 15% of the strength of the Parliament. 2. Council of Ministers are individually responsible to the Indian President. Which of the statements given above is/are correct?

The right answer is option B.

Statement 1 is incorrect.
The total number of ministers, including the Prime Minister, in the Council of Ministers
shall not exceed 15% of the total strength of the Lok Sabha.
Statement 2 is correct.
According to Art 75, the council of ministers shall be collectively responsible to the Lok
Sabha and the individual ministers shall hold office during the pleasure of the
President. In practice an individual minister holds the office during the pleasure of
Prime Minister because it is the prime Minister who nominates him into the Council of
Ministers.

#10. Consider the following statements about Socio-Economic Caste Census (SECC) 2011: 1. It was the first caste-based census in Independent India 2. It was conducted solely under the control of Ministry of Home Affairs 3. It uses the parameters laid down by Hashim Committee 4. According to SECC data, more than 75% of rural households in India are landless Which of the statement(s) given above is/are correct?

B

Statements 1 and 3 are correct. SECC 2011 was the first-ever caste-based census in Independent India (Last Caste based Census done in 1931). It has three objectives:
 To enable households to be ranked based on their Socio- Economic status. State Governments can then prepare a list of families living below the poverty line.
 To make available authentic information that will enable caste-wise population enumeration of the country.
 To make available authentic information regarding the socio economic condition, and education status of various castes and sections of the population. Hashim committee was constituted by Planning Commission to recommend the detailed methodology for identification of families living Below Poverty Line in urban areas. The approach recommended in interim report of this Expert Group is used in SECC 2011. Statements 2 and 4 are incorrect.  It was

#11. The term „hydrostatic equilibrium‟ is often seen in news. Which of the following conveys its meaning aptly in the context of planets:

C

According to the definition of planet adopted by the International Astronomical Union,
one defining characteristic of planets and dwarf planets is that they are objects that
have sufficient gravity to overcome their own rigidity and assume  ̳hydrostatic
equilibrium‘. In simple words, they should be massive enough to assume a nearly round
or spherical shape.

#12. Technology and Innovation Report is published by:

C
Technology and Innovation Report is launched by UNCTAD. Technology and Innovation Report 2018: Harnessing Frontier Technologies for Sustainable Development is the title of the report in 2018.
Global Innovation index is the one published by WIPO, INSEAD and Cornell University.

#13. Consider the following statements about Public Credit Registry: 1. It will capture details of all borrowers to check financial delinquencies. 2. It would serve as single point of mandatory reporting for all material events for any type of loan 3. It was created as per Raghuram Rajan committee recommendations Select the correct answer from the following:

B
Statement 3 is incorrect.It is based on the recommendations of a committee, headed by Y.M. Deosthalee.Statements 1 and 2 are correct.A public credit registry is an information repository that collates all loan information of individuals and corporate borrowers (including wilful defaulters). A credit repository helps banks distinguish between a bad and a good borrower and accordingly offer attractive interest rates to good borrowers and higher interest rates to bad borrowers. PCR will address issues such as information asymmetry, improve access to credit and strengthen the credit culture among consumers. It can also address the bad loan problem staring at banks, as corporate debtors will not be able to borrow across banks without disclosing existing debt. A PCR may also help raise India‘s rank in the global ease of doing business index.

#14. Neelakurinji is a small flowering plant of tropical climate. Which among the following statement(s) is/are correct about the flower? 1. It can be seen along the hills of Western Ghats and Eastern Ghats. 2. It flowers once in 12 years 3. It is the state flower of Kerala

Solution
Statement 1 is correct. Neelakurinji (Strobilanthes kunthiana) is a plant that abundantly grows in the shola grasslands of the Western Ghats. Though it is native to Shola forests in the Western Ghats they are also seen in Shevroys Hills in the Eastern Ghats, Anamalai hills and Agali hills in Kerala, and Sanduru hills in Karnataka. Statement 2 is correct. The flowers blossoms after 12 years, however, the scientific reason couldn‘t be proved beyond doubt. Statement 3 is incorrect. It has been categorized as an endangered species. The state flower of Kerala is Kanikonna (Cassia fistula)

#15. Consider the following statements regarding National e -Vidhan Application(NeVA) : 1. It aims for digitizing all legislatures of the nation and ensure paperless proceedings. 2. It is an initiative of Ministry of Parliamentary affairs. Select the correct answer using the code given below

Solution
Both statements are correct. NeVA is initiative of Ministry of Parliamentary Affairs. It aims to make all legislatures in the country paperless by making proceedings of houses digital. It also aims to provide information about functioning of House to common citizen at click of button.

#16. Tx2 programme which aims to double the tiger population had been launched by?

Tx2 is the programme conceived by WWF to double the tiger population within a decade of its adoption in each tiger bound countries. It was in news because Nepal has become the first country to achieve this feat.

#17. Consider the following statements related to Yarn Bank scheme which is seen in news often : The Scheme provides interest free corpus fund up to Rs 2 Crore to the consortium formed by power loom weavers. This was offered to boost the power loom fabric production which is consistently declining in the last 5 years. Which of the statements given above is/are correct?

Solution
Ans A

Statement 1 is correct.

The Yarn Bank Scheme is one of the components of PowerTex India to provide interest free corpus fund up to Rs 2 crore to the Special Purpose Vehicle (SPV) formed by power loom weavers. It enables them to purchase yarn at wholesale rate and give the yarn at reasonable price to the small weavers to avoid middleman and local supplier’s brokerage charge on sales of yarn.

Statement 2 is incorrect.

It was introduced to avoid fluctuation in yarn price. The power loom fabric production is not consistently declining but shows a marginal increase.

#18. Consider the following statements: 1. The maximum strength of the council of ministers shall not exceed 15% of the strength of the Parliament. 2. Council of Ministers are individually responsible to the Indian President. Which of the statements given above is/are correct?

Solution
The right answer is option B.

Statement 1 is incorrect.
The total number of ministers, including the Prime Minister, in the Council of Ministers
shall not exceed 15% of the total strength of the Lok Sabha.
Statement 2 is correct.
According to Art 75, the council of ministers shall be collectively responsible to the Lok
Sabha and the individual ministers shall hold office during the pleasure of the
President. In practice an individual minister holds the office during the pleasure of
Prime Minister because it is the prime Minister who nominates him into the Council of

#19. Identify the statements about amendments to the Indian Constitution: 1. No article has been added into Part IV of the Constitution through amendment 2. Schedule-IX was added to the constitution through a constitutional amendment 3. No article has ever been removed from Part III of the Constitution Select the correct answer using the code given below

Option C is the correct answer.

Statement 1 is incorrect.
Part IV incorporates Directive Principles of State policy. It was amended many times.
For e.g. Article 39A was added by 42nd Amendment Act of 1976.
Statement 2 is correct.
Schedule IX of the Constitution was added by the First amendment of the Constitution.
Statement 3 is incorrect.

Part III incorporates Fundamental Rights guaranteed by the Constitution. The Forty-
Fourth Amendment of 1978 deleted the Right to Property (Article 31) from the list of

fundamental rights.

#20. Identify the pairs which are correctly matched 1. Yakutsk – Boreal Climate 2. Perth – Mediterranean Climate 3. Vancouver – Marine West Coast climate 4. Harare – Equatorial Climate

Solution
Right answer is option D.

Boreal climate is located in higher latitudes of Northern hemisphere. Yakutsk
located in inner Siberia goes with this climate.
Mediterranean climate is found along Mediterranean coast, Central Chile, Cape
region Africa and South west Australia. Perth located in South west Australia has
Mediterranean climate.
British type climate is found in Western Europe, most parts of New Zealand and
British Columbia region which includes the city of Vancouver.
Harare the capital of Zimbabwe is well beyond the equatorial latitudes.

#21. National Disaster Risk Index - an all-India ranking of states and districts on the basis of disaster risk is prepared by:

Solution
A National Disaster Risk Index for India was prepared for the first time in 2018 by
Union ministry of home affairs with the support of United Nations Development
Programme (UNDP). It classifies both states and districts on the basis of their
proximity to the risks based on various factors. Six parameters of assessment are
Hazards, Vulnerability, Hazard specific vulnerability, hazard and vulnerability
exposure, capacity and risk.

#22. Consider the following statements regarding Press Council of India (PCI): 1. It is a statutory and quasi-judicial body to oversee the conduct of print media. 2. Members of Lok Sabha have representation in PCI. 3. Any aggrieved person can lodge a complaint against a newspaper directly to PCI. Which of the statements given above is/are correct?

Solution
The right answer is option D.

Statement 1 is correct.
Presently, the function of the council is governed under the Press Council Act, 1978. It is
a statutory, quasi-judicial body which acts as the watchdog of the press.

Statement 2 is correct.
It has members from parliament, nominated members by the press organizations,
representations from cultural and legal fields and one nominee of Bar council of India.
The chairman of PCI is a retired SC judge by convention elected by a panel headed by
the vice president. The members serve on the Council for a term of three years. A
retiring member shall be eligible for re-nomination for not more than one term.

Statement 3 is correct.
It adjudicates the complaints against and by the press for violation of ethics and for
violation of the freedom of the press respe

#23. Consider the following statements regarding the Wildlife Trust of India (WTI) : 1. It is a statutory body under Ministry of Environment. 2. Its objective is to promote the welfare of wild animals. Which of the above statement(s) is/are correct?

Solution
Statement 1 is incorrect.
The Wildlife Trust of India is a charitable trust (under Income Tax Act, 1961) working to
conserve wildlife and its habitat.
Statement 2 is correct.
Its mission is to conserve wildlife and its habitat and to work for the welfare of
individual wild animals, in partnership with communities and governments.

#24. Consider the following statements regarding European Bank for Reconstruction and Development (EBRD): 1. The EBRD was set up after the fall of the Berlin Wall. 2. It promotes private and entrepreneurial initiative in Europe. 3. India is a member of EBRD. Which of the above given statements is/are correct?

Solution
All the given statements are correct.
EBRD is an international financial institution founded in 1991. It focuses on more than
30 countries from central Europe to central Asia. The EBRD is committed to furthering
progress towards ̳market-oriented economies and the promotion of private and
entrepreneurial initiative‘ which has been its guiding principle since its inception. India
recently joined it as 69th member in July 2018.
It is different from European Investment Bank (EIB) and Council of Europe Development
Bank.

#25. Consider the following statements about the Third Battle of Panipat: 1. In this battle, Afghan king Ahmed Shah Abdali defeated combined forces of Marathas, Rohillas and Awadh 2. It witnessed the participation of a European colonial power in a battle in the Indian soil for the first time Which of the statements given above is/are correct?

Solution
Statement 1 is incorrect.
The Third Battle of Panipat took place in 1761 between a northern expeditionary force of
the Maratha Empire and invading forces of the King of Afghanistan, Ahmad Shah
Abdali, supported by two Indian allies—the Rohilla Najib-ud-daulah Afghans of the
Doab, and Shuja-ud-Daula, the Nawab of Awadh.
Statement 2 is incorrect.
The battle did not have the participation of any European colonial power.

#26. Which of the statements about the Milk of Magnesia is incorrect?

Solution
C
Milk of Magnesia or Magnesium hydroxide is a basic compound used as an antacid to
relieve indigestion.

#27. considered similar to that of O group 2. It has both A and B antigens 3. It is considered as rare blood group and was first discovered in India Select the correct codes form options given below:

Solution
B
Statement 1 is correct.
Statement 2 is wrong.
Bombay blood group was considered similar to O group as it does not have antigens A or
B. But it differs from O in not having antigen H too.
Statement 3 is correct.
It was first found in Bombay and occurs in 1 out of every 250,000 people. They can
donate blood to anybody with ABO grouping but can receive blood only from Bombay
mblood group people.
Blood Group Antigens Antibodies
A A,H B
B B,H A
AB A,B,H –
O H &nbs

#28. Which of the following electrical device needs to be used for converting an Alternating Current (AC) to a Direct current (DC)?

Solution
B
Transformer: Transfer energy from one AC circuit to another AC circuit.
Rectifier: Converts AC to DC by allowing current to flow in one direction only.
Solenoid: Coil of wire used as an electromagnet
Inverter: Converts DC to AC

#29. Consider the following statements : 1. Green house gas effect is primarily due to convection 2. A Black body absorbs infrared radiations and emits ultra-violet radiations Which of the statements given above is/are true?

Solution
D
Both statements are wrong.
Greenhouse effect is primarily due to Radiation. Green house gases actively absorb and
radiate energy in all directions.
A black body is one which absorbs and radiates energies of all frequencies and angles of
incidence. It has zero reflection.

#30. The round, palm-sized animals known as Sea squirts (Ascidians) are recently in news for its application in

Solution
B
Sea squirts (Ascidians) can filter particles from ocean and store them in its tissue.
Their habit of clinging to ships and invading beaches could help measure plastic
pollution as it can filter tiny particles from the ocean and store them in its soft
tissue. Recently researchers have found that ascidians can thrive in dirty industrial
areas and pristine waters alike, allowing them to detect and analyse waste and its
impact in various regions.

#31. Identify the correct statements related to Gene editing technology which often comes in the newspaper 1. Recent experiments suggest that gene editing can be done inside the human body also 2. Gene editing occurs also as a natural process without artificial genetic engineering. Select the correct answer using the code given below

Solution
C
Statement 1 is correct.
Recently Scientists made first ever attempt at gene editing inside the body. This new
therapy will permanently alter DNA, with no way to alter mistakes editing may cause
– but offers chance to tackle currently incurable metabolic diseases.
Statement 2 is correct.
Genome editing occurs also as a natural process without artificial genetic
engineering. The agents that are competent to edit genetic codes are viruses or sub
viral RNA-agents.

#32. Energy Efficiency (BEE) to promote efficient utilisation of energy? 1. Energy Conservation Building Code (ECBC) 2. Green Rating for Integrated Habitat Assessment (GRIHA) 3. Star Rating on Home Appliances 4. National Mission on Enhanced Energy Efficiency Select the correct answer using the code given below

Solution
C
GRIHA is a rating tool developed by TERI (The Energy and Resources Institute)
that helps people assesses the performance of their building against certain
nationally acceptable benchmarks. It evaluates the environmental performance of a
building holistically over its entire life cycle, thereby providing a definitive standard
for what constitutes a ̳green building‘.
The Energy Conservation Building Code 2017 (ECBC 2017) has been developed by
Ministry of Power and Bureau of Energy Efficiency (BEE) with technical support from
the United States Agency for International Development (USAID) under the U.S.-
India bilateral Partnership to Advance Clean Energy –Deployment Technical
Assistance (PACE-DTA) Program.

#33. With reference to the GSAT-11 launched by ISRO recently, consider the following statements 1. It is the heaviest satellite ever built by ISRO 2. It was put into the orbit by the GSLV Mk III heavy lift launch vehicle 3. The primary purpose of GSAT-11 is to enable much faster Internet services Which of the statements given above is/are correct?

Solution
B
Statement 1 is correct.
Weighing about 5,854 kg, the GSAT-11 is the heaviest and most advanced
communication satellite built by ISRO.
Statement 2 is incorrect.
It was put into the orbit by the Ariane 5 VA-246 launch vehicle.
Statement 3 is correct.
The mission of the GSAT-11 is to enable much faster Internet services than now to
users down home over the next 15 years. It will also provide a platform to
demonstrate new generation applications. GSAT-11 was launched into a
Geosynchronous Transfer Orbit.

#34. Which among the following are the correct statements regarding the inclusion of seaweeds in our diet? 1. Seaweeds are rich sources of vitamins A and C, and minerals such as Calcium and Iron 2. Only sea weeds of green colour are edible Select the correct answer using the code given below

Solution
A
Statement 1 is correct.
Like most land vegetables, seaweed contains vitamins A (beta carotene) and C. It is
also rich in potassium, iron, calcium, iodine and magnesium, which are minerals
concentrated in seawater. Seaweed is also one of the few vegetable sources of vitamin
B-12.
Statement 2 is incorrect.
Edible seaweeds come from the green, brown, and red groups of algae.

#35. Consider the following statements: 1. Anti-matter particles are man-made and do not exist naturally. 2. An anti-matter particle has the same mass as the particle. Which of the statements given above is/are correct?

Solution
B
Statement 1 is incorrect.
Antimatter is defined as a material composed of the antiparticles of the
corresponding particles of ordinary matter. Microscopic numbers of antiparticles are
generated daily in natural processes like cosmic ray collisions and some types of
radioactive decay. They are also produced at particle accelerators.
Statement 2 is correct.
Antimatter and matter particles have the same mass but differ in properties such as
electric charge and spin.

#36. Identify the rightly matched: 1. Serum - protein component of blood. 2. Pheromone–chemical secretions which trigger social response in similar species of organisms. 3. Anabolic steroid – used in case of inflammations and swellings. 4. Corticosteroids – used as performance boosters. Select the correct answer using the code given below

Solution
A
Corticosteroids mimic the effects of hormones your body produces naturally in your
adrenal glands. When prescribed in doses that exceed your body’s usual levels,
corticosteroids suppress inflammation. This can reduce the signs and symptoms of
inflammatory conditions, such as arthritis and asthma.
Anabolic steroids are synthetic versions of the hormone testosterone, used to build

muscle and increase strength. They are one among the common performance-
enhancing drugs used by athletics.

#37. Consider the following statements: 1. Botox is a toxin derived from Botulinum. 2. The impact of Botox is limited to the injected area alone. 3. Botox is a form of purified protein. Which of the statements given above is/are correct?

Solution
B
Statement 1 is correct.
Botox is the trade-marked name of botulinum toxin derived from the anaerobic
bacterium Clostridium Botulinum. Botulinum toxin is used to treat a number of
disorders characterized by overactive muscle movement, including post-stroke
spasticity, post-spinal cord injury spasticity, spasms of the head and neck, eyelid
etc.
Statement 2 is incorrect.
The effect of Botox is not limited to the injected area alone. As the muscle fascia is a
relatively ineffective boundary the unbound toxin can, driven by the concentration
gradient and the dynamics of injection, diffuse to nearby cholinergic neurons
through the extra cellular space. Even distant muscles can also be affected due to
vascular or lymphatic transport of the toxin.
Statement 3 is correct.
Botox is a form of purified protein.

#38. Consider the following statements about measuring equipments: 1. Lactometer measures the viscosity of fluids 2. Anemometer measures the speed of the winds Which of the statements given above is/are true?

Solution
B
Statement 1 is incorrect.
A lactometer measures the density of milk. It tells the user how much water is in the
milk that is being sampled. It works on the principle of specific gravity of milk. It
consists of a Test-Tube and a Meter Bulb.
Statement 2 is correct.
An anemometer is a device used for measuring wind speed, and is also a common
weather station instrument.

#39. Which of the following are processes involving a chemical change in the substances? 1. Esterification 2. Exfoliation of rocks 3. Electrolytic Cracking Select the correct codes form options given below:

Solution
B
Exfoliation is the term used to describe the peeling away of sheets of rock millimeters
to meters in thickness from a rock’s surface mainly due to a range of physical
processes during exhumation and weathering.
Esterification is the reaction in which a Carboxylic acid combines with an alcohol in
the presence of little concentrated sulphuric acid to form an ester.
Electrolytic cracking uses electricity to crack the chemical bonds that hold H2O
together.

#40. 1. Presbyopia 2. Color blindness 3. Myopia 4. Night blindness 5. Long-sightedness Select the correct codes form options given below:

Solution
C
A person with myopia or near-sightedness can see nearby objects clearly but cannot
see distant objects distinctly. In a myopic eye, the image of a distant object is formed
in front of the retina and not at the retina itself. A concave lens of suitable power will
bring the image back on to the retina and thus the defect is corrected.
A person with hypermetropia can see distant objects clearly but cannot see nearby
objects distinctly. This is because the light rays from a close by object are focused at
a point behind the retina. This defect can be corrected by using a convex lens of
appropriate power.
Aged people often find it difficult to see nearby objects comfortably and distinctly
without corrective eye-glasses. This defect is called Presbyopia. Sometimes, a person

may suffer from both myopia and hypermetropia. Such people often require bi-focal
lenses.
Both Color blindness and night bl

#41. A person moving out to the sun from a closed room will feel the sunshine as extra bright and unbearable because : 1. The eye?s con cells are highly sensitive and active while in a dark room 2. The pupil remains dilated while entering sun 3. The retina of the eye remains enlarged while in a close room Which of the statements given above is/are correct?

Solution
B
Statement 1 is incorrect.
The eye‘s con cells are highly sensitive and active while in a bright room.
Statement 2 is correct.
A person moving out to the sun from a closed room will feel the sunshine as extra
bright because the pupil remains dilated as in the dark room. And this causes a
large amount of light to enter our eyes and causing discomfort.
Statement 3 is incorrect.
The pupil of the eye remains enlarged while in a close room.

#42. A person hosting pets in the home is least likely to be vulnerable to which of the following disease?

Solution
D
All except Diabetes can be infected through pets.

#43. Consider the following pairs : Forms Element 1. Graphite - Carbon 2. Silicene - Silicon 3. Ozone - Oxygen 4. Fullerene - Sulphur Identify the correctly matched allotropes and their respective element pairs using the codes given below :

Solution
B
Fullerene is a form of carbon having a large spheroidal molecule consisting of a hollow
cage of sixty or more atoms, of which buckminsterfullerene was the first known
example.

#44. Potassium chlorate is widely used in the Indian industries as a raw material. Which of the following are less likely to be an application of Potassium chlorate?

Solution
D
Potassium chlorate is a chemical compound that contains chlorine, oxygen, and
potassium. In its pure form, it is white and crystalline in appearance. Potassium
chlorate is commonly used: to prepare oxygen, disinfectant, in safety matches, as an
oxidizing agent, in fireworks and explosives, and in fruit cultivation.

#45. Consider the following statements : 1. A heavier stone reaches the ground faster than a lighter stone, when dropped from same height 2. A large container ship experiences same buoyant force as that of a small boat Which of the statements given above is/are correct?

Solution
A
Statement 1 is correct.
It is because of the fact that the force of gravity is stronger on heavier objects than
lighter ones. It can also be explained that the gravity has to pull harder on a heavy
object than a light one in order to speed them both up by the same amount, as it
accelerates everything at exactly the same rate, g.
Statement 2 is incorrect.
The buoyant force on an object submerged in a liquid depends on the object‘s mass
and the object‘s volume.

#46. Bronze is the alloy of

Solution
B
Bronze is an alloy of Copper and Tin.

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