Railaway Quiz - 6

Q.1 Rate at which diffusion of gas is

A. Directly proportional to its density

B. Directly proportional to its molecular weight

C. Directly proportional to the square of its molecular weight

D. inversely proportional to the square root of its molecular weight

Ans � D

Q.2 The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called

A. Inversion temperature

B. Reduced Temperature

C. Boyle�s law

D. Critical temperature

Ans � C

Q.3 The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure is

A. Dalton�s law

B. Gay- Lussac�s law

C. Henry�s law

D. Raoult�s law

Ans � C

Q.4 Which of the following metal has the lowest melting point?

A. Lead  

B. Lithium

C. Potassium

D. Sodium

Ans � C

Q.5 Tomato is a natural source of which acid

A. Tartaric acid

B. Oxalic acid

C. Acetic acid

D. Citric acid

Ans � D

Q.6 The changein focal length of the lens in the human eyes caused by the action of

A. Pupil  

B. Retina

C. Ciliary muscles

D. Iris

Ans � C

Q.7 A chemical reaction in which heat is given out along with the products is known as

A. Exothermic process

B. Isothermic process

C. Hypothermic process

D. Endothermic process

Ans- A

Q.8 Which of the following is a non metal?

A. Gallium

B. Indium

C. Boron

D. Aluminium

Ans � C

Q.9 How many kinds of rays do radioactive elements emit?

A. Two

B. Three

C. Six

D. Four

Ans � B

Q.10 The process of chemical decomposition of a ssubstance by water is known as

A. Hydrogenation

B. Hydrolysis

C. Hybridisation

D. Hypotrophy

Ans - B