NDA CHEMISTRY QUIZ - 3

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Question 1:

Match List I with List II

List I

List II

A. Polar molecular solids 

I. HCl

B. Non polar molecular solids 

II. HF

C. Hydrogen bonded molecular solids 

III. Water


IV .CO2


V. Xe

Question 2:

DIRECTIONS: Read the following two statements and choose the correct answer. 

Statement – 1 Graphite is a covalent solid 

Statement -2  It is a good conductor of electricity .

Question 3:

DIRECTIONS: Read the following two statements and choose the correct answer. 

Statement -1   Ice is an example of network solids .
Statement - 2 In network solids , constituent particles are molecules.

Question 4:

There are 3 samples A , B and C . 

A has least intermolecular space between the particles.

B has highest compressibility .

C takes the shape of the container in which it is kept but volume remain same .

Sample A , B and C is 

Question 5:

Match List I with List II

List I

List II

1) Amorphous solid 

a) Sharp melting point

2)  Crystalline solid 

b) Anisotropic in nature 


c) Super cooled liquid 


d) Isotropic in nature 


e) Definite heat of fusion 

Question 6:

A child observed a sample in the lab . He observed that the sample is hard but it can be convert into thin sheets and also it is good conductor of electricity . Sample is a 

Question 7:

Which of the following statement is true about Latent heat ?

  1. Latent heat is used to overcome the force of attraction the particles.
  2. Latent heat is used to change the state .
  3. Latent heat raises the temperature between.

Question 8:

In pressure cooker , food cooks faster because 

Question 9:

Steam cause more burns than water at 373 K temperature because 

Question 10:

Substance A has the following properties 

  1. It is stored under high pressure 
  2. On decreasing pressure to 1 atm , it directly converts from solid state to vapor state 
  3. It is used as refrigerant for ice – cream 

Substance A is