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Chemistry - 9 Chapter - 9
Acids, Bases and Salts
Test - 10
1.
The basicity of a base is defined as the number of ionizable hydrogen atoms present in its molecule.
a) False
b) True
2.
Acids and bases react together to form salts and water and in this way they neutralize the properties of each other.
a) True
b) False
3.
A Normal Salt is obtained when hydrogen atoms present in an acid are partially replaced by metallic atoms.
a) True
b) False
4.
A basic salt is obtained when the hydroxyl groups present in a base are partially replaced by some other groups.
a) True
b) False
5.
Define Double Salts?
a) When two typical salts are crystallized together a double salt is formed. The physical properties of the crystals of double salt are different form those of the component acids.
b) When two typical salts are crystallized together a double salt is formed. The physical properties of the crystals of double salt are different form those of the component salts.
6.
The number of water molecules present in the crystals of a solid is termed as Water of Crystallization.
a) False
b) True
7.
The amount of heat absorbed during this neutralization reaction is called heat of neutralization.
a) True
b) False
8.
Acidic nature of soil is decreased by mixing lime or calcium hydroxide with it.
a) True
b) False
9.
Salts, which have neither replaceable hydrogen atoms nor hydroxyl groups are called Basic salts.
a) True
b) False
10.
Salts, which are formed by the partial replacement of hydrogen atoms present in the acids, are called basic salts.
a) True
b) False
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