This page requires a JavaScript-enabled browser
Instructions on how to enable your browser are contained in the help file.
Chemistry - 9 Chapter - 9
Acids, Bases and Salts
Test - 5
1.
What happens when soil becomes more acidic?
a) It affects the water level
b) It affects the growth of crops
2.
How acidic nature of soil is decreased?
a) Lime or calcium hydroxide is mixed with it.
b) Iron Sulphate or calcium hydroxide is mixed with it.
3.
When acids neutralize bases, salts and water are formed.
a) False
b) True
4.
Salts, which have neither replaceable hydrogen atoms nor hydroxyl groups are called _________. Normal salts
a) Basic salts
b) Normal salts
c) Acidic salts
5.
Salts, which are formed by the partial replacement of hydrogen atoms present in the acids, are called ________.
a) Basic salts
b) Normal salts
c) Acidic salts
6.
Salts, which are formed by the partial replacement of hydroxyl groups present in the bases, are called.
a) Acidic salts
b) Basic salts
c) Normal salts
7.
When two specific salts are crystallized by dissolving them in water the crystals which are obtained are called.
a) Basic salts
b) Acidic salts
c) Normal salts
d) Double salts
8.
The _______properties of Double slats remain the same as the component salts but their ________properties change.
a) Chemical, physical
b) Physical, chemical
9.
Name two imp salts?
a) Sodium and Hydrogen Carbonate (NaHCO
3
)
b) Sodium carbonate and Sodium Hydrogen Carbonate (NaHCO
3
)
10.
What is washing soda? Short..Answer������Remember.by.Heart���� It is basically Sodium carbonate extracted from the roots of different plants obtained by dissolving in hot water.
a) It is basically Sodium carbonate extracted from the ash of different plants obtained by dissolving in hot water.
b) It is basically Sodium carbonate extracted from the roots of different plants obtained by dissolving in hot water.
This is more feedback!
This is the feedback!
