Time Left : 00:00

Question Numbers



  • CURRENT QUESTION
  • NOT VISITED
  • ATTEMPTED
  • NOT ATTEMPTED
Back To Main Page
1. Mercury : Minamata disease :: ? : Itai-Itai disease

A

Lead

B

Nickel

C

Iron

D

Cadmium

2. When a fan is switched off, it continues to rotate for some time before coming to rest. This is due to

A

Force of acceleration

B

Inertia of motion

C

Inertia of rest

D

Inertia of direction

3. Water helps control our body temperature and allows us to adapt to changes in environmental temperatures because it has

A

High heat capacity

B

Low heat capacity

C

High entropy

D

Low entropy

4. Which of the following forms of energy drives a wind turbine, a device use to generate electricity?

A

Gravitational Potential Energy

B

Mechanical Energy

C

Kinetic Energy

D

Hydrothermal Energy

5. The chemical name of which of the following vitamins is Ergocalciferol?

A

Vitamin A

B

Vitamin B6

C

Vitamin D2

D

Vitamin K

6. Which of the following is an example of secondary cell?

A

Lead storage cell

B

Leclanche dry cell

C

Daniell cell

D

Hydrogen cell

7. Which of following vitamin B reduces the risk of spina bifida in unborn babies?

A

Niacin

B

Pantothenic acid

C

Folic acid

D

Riboflavin

8. Solar cells are simple photovoltaic devices that convert solar energy into electricity and are manufactured from the second most abundant element in the earth`s crust. Name It

A

Bauxite

B

Silicon

C

Calcium

D

Aluminium

9. Physical independence of forces is a consequence of

A

1st law of motion

B

2nd law of motion

C

3rd law of motion

D

all of the above

10. A wave travels through a medium because

A

the medium`s particles are carried along with the wave

B

the wave`s energy passes from particle to particle

C

the medium transfers electromagnetic energy

D

the wave increases the potential two spherical energy

11. For inelastic collision between two spherical rigid bodies :

A

the total kinetic energy is conserved

B

the total potential energy is conserved

C

the total linear momentum is not conserved

D

the total linear momentum is conserved

12. Which of the following series of lines in the atomic structure of hydrogen atom appear in the visible region?

A

Lyman

B

Paschen

C

Brackett

D

Balmer

13. When a hydrogen atom is raised from ground state to excited state

A

Potential energy decreases, kinetic energy increases

B

Potential energy increases, kinetic energy decreases

C

Both potential energy and kinetic energy decreases

D

Absorption spectrum

14. The atomic number of sodium is 11 and its mass number is 23. It has

A

11 neutrons and 12 protons

B

12 protons and 11 electrons

C

11 electrons and 12 neutrons

D

12 electrons and 11 neutrons

15. Which is a not colligative property?

A

Surface tension

B

Osmotic pressure

C

Viscosity

D

Refractive index

16. Which of the following is non essential element in plants?

A

Iron

B

Boron

C

Sulphur

D

Cadmium

17. Loss of water from tip of leaves is

A

Transpiration

B

Guttation

C

Bleeding

D

Respiration

18. Which vitamin is a major lipid soluble antioxidant in cell membranes?

A

Vitamin A

B

Vitamin D

C

Vitamin E

D

Vitamin K

19. Deficiency of Vitamin A in children causes

A

Goitre

B

Poor Cognitive Development

C

Poor bone growth

D

Increased risk of mortality

20. Which green house gas other than methane is produced by agricultural fields?

A

Nitrous oxide

B

Sulphur Dioxide

C

Ammonia

D

Arsenic