EASY
7th CBSE
IMPORTANT
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The acid present in curd/ sour milk is

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Important Questions on Acids, Bases and Salts

EASY
7th CBSE
IMPORTANT
The substance which turns blue litmus red is
 
MEDIUM
7th CBSE
IMPORTANT
China rose indicator turns green with the addition of a solution. The solution is
MEDIUM
7th CBSE
IMPORTANT

Acids obtained from minerals are called 

MEDIUM
7th CBSE
IMPORTANT

Write one word for the following:

The bases which dissolve in water.

MEDIUM
7th CBSE
IMPORTANT
Write one word for the following:
A base used in whitewashing. (Calcium hydroxide/ Magnesium hydroxide)
MEDIUM
7th CBSE
IMPORTANT
A substance that changes its colour when added to an acid or a base.