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Chemistry - 9 Chapter - 10
Chemical Energetics
Test - 4
1.
Enthalpy of substance is also called its heat content.
a) True
b) False
2.
What are the factors on which heat content depends?
a) Physical state of substance only
b) Physical state of substance and Temperature.
3.
Heat is absorbed or evolved not only in chemical reactions only.
a) False
b) True
4.
Heat is absorbed or evolved not only in chemical reactions but in physical changed as well.
a) True
b) False
5.
Conversion of liquid of water into vapours is an example of endothermic physical change.
a) False
b) True
6.
What is neutralization reaction?
a) Acids and water react together to form salts and water. This reaction is called neutralization reaction.
b) Acids and bases react together to form salts and water. This reaction is called neutralization reaction.
7.
When acids and bases react together to form salts and water, the reaction is called neutralization reaction.
a) True
b) False
8.
When the resultant solution is neither acidic nor basic but is neutral, the reaction is called neutralization reaction.
a) True
b) False
9.
What is heat of neutralization?
a) The amount of heat absorbed during neutralization reaction is called heat of neutralization.
b) The amount of heat evolved during neutralization reaction is called heat of neutralization.
10.
The amount of heat evolved during neutralization reaction is called heat of absorption.
a) False
b) True
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