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1. In Ozone, which layer is termed as "good ozone"?

A

Mesosphere

B

Troposphere

C

Exosphere

D

Stratosphere

2. Which of the following is an example of vector quantity?

A

Momentum

B

Mass

C

Volume

D

Speed

3. Which is the most abundant gas in earth`s atmosphere?

A

Oxygen

B

Hydrogen

C

Carbon Dioxide

D

Nitrogen

4. What is the SI unit of the electric current?

A

Candela

B

Pascal

C

Mole

D

Ampere

5. The process of breaking molecules in the absence of oxygen is called ___________.

A

Photosynthesis

B

Aerobic Respiration

C

Anaerobic Respiration

D

Evapotranspiration

6. The branch of Physics concerned with the properties of sound.

A

Rhythm

B

Resonance

C

Acoustics

D

Announce

7. The period of transition from childhood and adulthood is known as

A

Maturity

B

Courtship

C

Adulthood

D

Adolescence

8. Which of the following when added to pure water usually increases its surface tension?

A

Detergent

B

Sodium Chloride

C

Kerosene oil

D

Phenyl

9. Which of the following substances is usually used in cold countries to melt ice accumulated on the roads during winter?

A

Salt

B

Urea

C

Boric Acid

D

Hydrogen Peroxide

10. Which of the following options is an example for chemical change?

A

Crystallization of salt

B

Evaporation

C

Burning of coal

D

Melting of ice

11. What is the full form of MSG, a chief flavor enhancer used in the food industry?

A

Monosodium glycinate

B

Monosodium glutamate

C

Monosodium glutamine

D

Monosulphur glycerol

12. Which of the following instruments is used to measure the blood pressure of the Human body?

A

Endoscope

B

Thermometer

C

Stethoscope

D

Sphygmomanometer

13. CNG is a fuel gas which is mainly composed of methane that is used for vehicles in general. Here CNG stands for

A

Complex nitrous gas

B

certified national gas

C

compressed natural gas

D

coal and nucleotide gas

14. Among the following, what is Cupric sulfate commercially known as?

A

Baking Soda

B

Blue Vitriol

C

Bleaching Powder

D

Gypsum

15. Lung cancer be be caused by which of the following hazardous substance?

A

Ozone

B

Nitrous Oxide

C

Asbestos Particulates

D

Mercury

16. Which of the following is a superconductor?

A

Ceramic

B

Air

C

Paper

D

Mercury

17. What is the white of the eye called?

A

Retina

B

Sclera

C

Cornea

D

Iris

18. Which among the following process is associated with application of zinc coating to steel or iron to prevent rusting?

A

Galvanisation

B

Halogenation

C

Polycondensation

D

None of these

19. Water available in soil for the root of plant is ____

A

Capillary Water

B

Gravitational Water

C

Hygroscopic Water

D

None of these

20. For which of the following articles are Concave mirrors used ?

A

Shaving and Makeup Mirrors

B

Microscopes

C

Headlights

D

All of these