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Chemistry - 9 Chapter - 9
Acids, Bases and Salts
Test - 14
1.
Tartaric acid is present in grapes and tamarind
a) True
b) False
2.
A neutral solution has PH=0
a) True
b) False
3.
The formula of soda ash is Na
2
CO
3
a) False
b) True
4.
The molarity of an acid or a base can be determined by titration.
a) True
b) False
5.
Acids react with metals to liberate:
a) Water gas
b) Hydrogen gas
c) SO
2
gas
d) CO
2
gas
6.
AlCl
3
is a:
a) Conjugate base
b) Arrhenius base
c) Bronsted acid
d) Lewis acid
7.
Basicity of an acid is defined as number of ionizable atoms present in a molecule
a) Chloride atoms
b) Oxygen atoms
c) Hydroxyle atoms
d) Hydrogen atoms
8.
Formic acid is present in:-
a) Vinegar
b) Stings of insects
c) Lemon
d) Sour milk
9.
Basic salts are formed by the partial replacement of:
a) Hydroxyle atoms present in a base
b) Water molecule present in an acid
c) Hydrogen atoms present in an acid
d) Water molecule present in a base
10.
Which one is a weak acid
a) HCl
b) H
2
SO
4
c) NHO
3
d) Carbonic acid
11.
Formula of potash alum is
a) K
2
SO
4
Fe
2
(SO
4
)
3
24H
2
O
b) CUSO
4
5H
2
O
c) KCl Mgcl
2
6H
2
O
d) K
2
SO
2
Al
2
(SO
2
)
3
24H
2
O
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