GK Quiz on Science: Chemistry Set XX

GK Quiz on Science: Chemistry Set XX, in this set you will find repository of 10 Multiple Choice Questions that will help you to attune and equipped for different competitive examinations as well as academic examinations.

1. Which of the following gas is directly respondent for the acid rain in the atmosphere?

A. CFC

B. CH₄

C. Ozone

D. SO₂

2. Which of the following is assumed to be the most fundamental chemical in the chemical industry?

A. H₂CO

B. HNO₃

C. H₂SO₄

D. HCl

3. The electrolyte employed in the car battery is:

A. Hydrochloric acid

B. Sulphuric acid

C. Nitric acid

D. Distilled water

4. Through the reaction of sugar and sulphuric acid which of the following is obtained in its pure form:

A. Water

B. Carbon

C. Oxygen

D. Hydrogen

5. Which of the following is the most reactive among the halogens?

A. Fluorine

B. Chlorine

C. Bromine

D. Iodine

6. Which of the following noble gas doesn't exist in the air?

A. Helium

B. Neon

C. Argon

D. Radon

7. The contribution of the invention of the inert gases goes to:

A. Pristle

B. Ramse

C. Shelley

D. Cavendish

8. The gas utilized to fill up the tyres of the aircraft is:

A. Hydrogen

B. Helium

C. Nitrogen

D. Neon

9. Which of the following gas is utilized to fill up the balloon, especially when weather related prediction and reporting is to be done?

A. O₂

B. CO₂

C. CH4

D. He

10. The gases employed for the respiratory activities of sailors (divers) are:

A. Oxygen and Nitrogen

B. Oxygen and Helium

C. Oxygen and Argon

D. Oxygen and Neon

Question	Answer
1	D
2	C
3	B
4	B
5	A
6	C
7	B
8	B
9	D
10	B

GK Quiz on Science: Chemistry Set XIX

GK Quiz on Science: Chemistry Set XIX, in this set you will find repository of 10 Multiple Choice Questions that will help you to attune and equipped for different competitive examinations as well as academic examinations.

1. Quartz is composed of:

A. Calcium sulphate

B. Calcium silicate

C. Sodium sulphate

D. Sodium silicate 

2. The laughing gas utilized in the form of anaesthesia by the doctors is:

A. Nitrogen

B. Nitrogen oxide

C. Nitrous oxide

D. Nitrogen dioxide 

3. The chemical substance which is easily soluble in water:

A. Carbon

B. Nitrogen

C. Ammonia

D. Iodine 

4. Usually the coolant which is used as domestic coolant:

A. Neon

B. Ammonia

C. Nitrogen

D. Freon 

5. Tear gas is:

A. Ammonia

B. Chlorine

C. Hydrogen chloride

D. Hydrogen sulphide 

6. Which of the following is the most abundantly occurring element in the earth-crust?

A. Oxygen

B. Nitrogen

C. Manganese

D. Silicon 

7. Which of the following is a paramagnetic substance?

A. Iron

B. Hydrogen

C. Oxygen

D. Nitrogen, 

8.0xygen and Ozone are:

A. Allotropes

B. Isotopes

C. Isomers

D. Isobars 

9. Which of the following when passes through the alkaline solution of the pyrogalol then ground nut coloured solution is formed?

A. Oxygen

B. Nitrogen

C. Hydrogen

D. Carbon dioxide 

10. Which of the following gas is directly respondent for the depletion of ozone layer?

A. Carbon dioxide

B. Carbon monoxide

C. Nitrous oxide

D. Chlorofluorocarbon (CFC)

Question	Answer
1	B
2	C
3	C
4	B
5	B
6	A
7	C
8	A
9	A
10	D

GK Quiz on Science: Chemistry Set XVIII

GK Quiz on Science: Chemistry Set XVIII, in this set you will find repository of 10 Multiple Choice Questions that will help you to attune and equipped for different competitive examinations as well as academic examinations.

1. The permanent hardness of water appears due to the:

A. Carbonates of calcium and magnesium 
B. Bicarbonates of calcium and magnesium 
C. Chloride and sulphate of the calcium and magnesium 
D. None of these

2. In which of the following carbon is not present?

A. Diamond  
B. Graphite  
C. Coal 
D. None of these

3. The heavy water is a type of:

A. Coolant  
B. Moderator 
C. Ore
D. Fuel

4. In all bio compounds the most necessary fundamental element is:

A. Nitrogen 
B. Oxygen  
C. Carbon 
D. Sulphur

5. Which of the following is the most hard?

A. Diamond 
B. Glass  
C. Quartz 
D. Platinum

6. The percentage content of carbon is more than other coal in:

A. Bituminous 
B. Lignite  
C. Peat  
D. Anthracite

7. The ordinary and general type of coke is :

A. Anthracite 
B. Lignite  
C. Bituminous 
D. Peat

8. The polluted gas emitted from the vehicles is mainly:

A. Carbon dioxide  
B. Carbon monoxide 
C. Marsh gas  
D. Nitrogen oxide

9. Which of the following gas pollutes the most to the air?

A. Carbon dioxide  
B. Carbon monoxide 
C. Sulphur dioxide  
D. Hydrocarbon

10. Dry ice is:

A. Solid water 
B. Solid CO₂
C. Dehydrated ice 
D. Solid H₂O₂

Question	Answer
1	C
2	B
3	C
4	D
5	A
6	D
7	C
8	B
9	B
10	B

GK Quiz on Science: Chemistry Set XVII

GK Quiz on Science: Chemistry Set XVII, in this set you will find repository of 10 Multiple Choice Questions that will help you to attune and equipped for different competitive examinations as well as academic examinations.

1. Which of the following metal is the heaviest?

A. Silver

B. Copper  

C. Gold

D. Lead

2. Which of the following metal is liquid at ordinary temperature?

A. Lead

B. Mercury

C. Nickel

D. Tin 

3. The substance employed and frequently used in the fluorescent tube is:

A. Sodium oxide and argon

B. Sodium vapour and neon

C. Mercury vapour and argon

D. Mercury oxide and argon

4. Which of the following metal is used in the accumulator cell?

A. Copper

B. Lead

C. Aluminium

D. Zinc

5. Which of the following metal is the hardest one?

A. Gold

B. Iron

C. Platinum

D. Lead

6. The gas emancipating through paddy field is :

A. Ethane

B. Methane

C. Nitrogen

D. All of these

7. Which of the following is the heaviest metal?

A. Copper

B. Uranium

C. Aluminium

D. Silver

8. The colours of the fire crackers are extracted from the elements of the salt of:

A. Zn and S

B. K and Hg

C. Sr and Ba

D. Cr and Ni

9. The maximum density of the water exists at :

A. 100°C

B. + 4°C

C. O°C

D. -4°C

10. The boiling point and freezing point of the water on mixing edible salt would:

A. Increase

B. Increase and then decrease

C. Decrease

D. Decrease and then increase

Question No.	Answer
1	C
2	B
3	C
4	B
5	C
6	B
7	B
8	C
9	B
10	C

GK Quiz on Science: Chemistry Set XVI

GK Quiz on Science: Chemistry Set XVI, in this set you will find repository of 10 Multiple Choice Questions that will help you to attune and equipped for different competitive examinations as well as academic examinations.

1. Which of the following is the chemical name of the lime stone?

A. Calcium chloride

B. Calcium oxide

C. Calcium carbonate

D. Calcium sulphate 

2. From which of the following ore, iron is extracted?

A. Lime stone

B. Pinch blend

C. Monazite sand

D. Haematite 

3. What will be the change when iron get rusted?

A. Its weight is increased

B. Its weight is decreased

C. No changes take place

D. Its weight change 

4. Which of the following element is mixed up for making steel which can resist high temperature and which has high level hardness and anti-frictional resistivity?

A. Aluminium

B. Chromium

C. Nickel

D. Tungsten 

5. To provide stern hardness which of the following is mixed up?

A. Carbon

B. Manganese

C. Silicon

D. Chromium 

6. Blue Vitriol is:

A. Copper sulphate

B. Iron sulphate

C. Calcium sulphate

D. Sodium sulphate 

7. The coating of thin layer of the zinc on the steel or iron utensils is called:

A. Heat feeding

B. Material plating

C. Lamination

D. Electro plating 

8. The sharp (bitter) smell of the substance which is found in the colouration or painting is:

A. CaOH

B. Al₂ (S0₄)₃

C. CaC03

D. Zn₃(P0₄)₂ 

9. Which of the following metal is the best conductor of the electricity?

A. Gold

B. Silver

C. Copper

D. Zinc 

10. The substance which is useful for the photography:

A. Silver Nitrate

B. Silver bromide

C. Sulphuric acid

D. Citric acid

Question	Answer
1	C
2	D
3	A
4	B
5	D
6	A
7	C
8	D
9	B
10	B