Acids, Base and Salts TNPSC Group 1 Questions

Acids, Base and Salts MCQ Questions

13.
pH of Gastric juice is
A.
1.6
B.
7
C.
14
D.
7.4
ANSWER :
A. 1.6
14.
The silver salt used in Photography is
A.
AgBr
B.
AgNO3
C.
AgCl
D.
AgI
ANSWER :
A. AgBr
15.
The acid present in milk is known as
A.
Citric acid
B.
acetic acid
C.
Lactic acid
D.
Butyric acid
ANSWER :
C. Lactic acid
16.
Hardness of water is due to the soluble salts of
A.
sodium and potassium
B.
potassium and calcium
C.
sodium and magnesium
D.
calcium and magnesium
ANSWER :
D. calcium and magnesium
17.
Dibasic acid is
A.
acetic acid
B.
phosphoric acid
C.
sulphuric acid
D.
nitric acid
ANSWER :
C. sulphuric acid
18.

Which of the following is incorrectly matched?

A.

Mohr's Salt - FeSO4(NH4)2 SO4 6H2O

B.

Basic Salt - NaHCO3

C.

Basic Salt - Cu(OH) NO3

D.

Complex salt- K4 Fe(CH)6

ANSWER :

C. Basic Salt - Cu(OH) NO3