Acid, Base and Salt UPSC Questions

Acid, Base and Salt MCQ Questions

13.
When the solution is basic, phenolphthalein gives a _____ colour.
A.
Blue
B.
Purple
C.
Orange
D.
Pink
ANSWER :
D. Pink
14.
When the solution is acidic, phenolphthalein gives _____ colour.
A.
No
B.
Green
C.
Purple
D.
Red
ANSWER :
A. No
15.
In neutralisation reaction a new substance is formed along with water and evolution of heat. This is called _____
A.
Base
B.
Powder
C.
Salt
D.
Foam
ANSWER :
C. Salt
16.
The reaction between an acid and a base is known as _____
A.
Reaction
B.
Neutralisation
C.
Precipitation
D.
None of the above
ANSWER :
B. Neutralisation
17.
Name the acid in our stomach that helps to digest the food.
A.
Sodium chloride
B.
Water
C.
Acetic acid
D.
Hydrochloric acid
ANSWER :
D. Hydrochloric acid
18.
Which of the following can be used to relieve from indigestion?
A.
Milk of magnesia
B.
Acetic acid
C.
Formic acid
D.
Sodium bicarbonate
ANSWER :
A. Milk of magnesia