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UPSC CAPF AC Paper - I
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Ammonia (NH3) obtained from different sources always has same proportion of Nitrogen and Hydrogen. It proves the validity of law of:

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Important Questions on Chemistry

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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 1>Q 24

Match the List I (Crystals) with List II (Type/Structure).
    List I                  List II

A. Ice                 1. Conductivity covalent solid

B. Solid C02      2. Insulator

C. Graphite        3. Molecular crystal

D. Silica             4. Hydrogen bonded structure

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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 1>Q 25

Consider the following statements:

1. Liquid state is intermediate between solid state and gaseous state regarding interparticle force of attraction, packing of particles etc.

2. Evaporation increases with increase in surface area, increase in temperature and decrease in intermolecular attractive forces.

3. Boiling point of a liquid increases with increase in external pressure.

Which of the statements given above are correct?

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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 1>Q 26
At absolute zero, which one of the following is zero for a gas?
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 1>Q 27
A balloon filled with ethyne is pricked with a sharp point and quickly dropped in a tank of H2 gas under identical conditions. After a while the balloon will have
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 1>Q 28
Why do two ice blocks join to form one block when pressed together?
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 1>Q 29
Which one of the following is used as an anti-freezer, which effectively depresses the freezing point of water in an automobile?
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UPSC CAPF AC Paper - I
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14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 1>Q 30
An ideal gas is one that obeys_____.
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 1>Q 31
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?