Chemistry - Questions and Answers, General Study (GK)

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Chemistry - Questions and AnswersPage 1

Internal energy of gas (ideal) depends only on

(a)pressure

(b)temperature

(c)volume

(d)temperature and pressure

Comment

Answer is: BNA

Dry ice is used for making cold-baths in laboratories by mixing with volatile organic solvents. Indentify the form of dry ice from the following

(a)Gaseous carbon dioxide

(b)Liquid carbon dioxide

(c)Solid carbon dioxide

(d)Solid hydrogen oxide

Comment

Answer is: CNA

As which one of the following, does carbon occur in its purest form in nature?

(a)Diamond

(b)Graphite

(c)Carbon black

(d)Coal

Comment

Answer is: CNA

At absolute zero, which one of the following is zero for a gas?

(a)Potential energy

(b)Kinetic energy

(c)Vibration energy

(d)None of the above

Comment

Answer is: BNA

Why do two ice blocks join to from one block when pressed together?

(a)Melting point of ice is lowered with increase in pressure

(b)Melting point of ice increased with increase in pressure

(c)Melting point of ice remains unchanged with increase in pressure

(d)Melting point of ice is 0°C

Comment

Answer is: ANA

What is the term used to denote the critical temperature at which the air becomes saturated with vapour and below which the condensation is likely to begin?

(a)Condensation point

(b)Evaporation point

(c)Dew point

(d)Point of critical temperature

Comment

Answer is: CNA

According to which one of the following laws it is indicated that when two or more gases react with one another, their volumes bear a simple ratio?

(a)Law of mass action

(b)Law of multiple proportions

(c)Law of reciprocal proportions

(d)Law of combining volumes

Comment

Answer is: DNA

In winter season specially in cold countries, ethylene glycol is added to water in the radiators of cars. It results in

(a)reducing the viscosity of water

(b)lowering the freezing point of water

(c)lowering the boiling point of water

(d)reducing the specific heat of water

Comment

Answer is: BNA

Which one of the following elements exists in liquid state at room temperature?

(a) Mercury

(b)Lead

(c)Sodium

(d)Calcium

Comment

Answer is: ANA

10.

The mass of water vapour per unit volume of air is known as

(a)relative humidity

(b)specific humidity

(c)absolute humidity

(d)variable humidity

Comment

Answer is: CNA

Comments

useful stuffs

Ravi On 10.01.2016. 16:10

Chemistry - Questions and AnswersPage 1

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