EASY
7th CBSE
IMPORTANT
Earn 100

Emblica (Awla or amla) fruit is rich in acid. 

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Important Questions on Acids, Bases and Salts

EASY
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q II
Chemical nature of a substance which turns yellow turmeric stain to brownish red colour is_____.
EASY
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q II
A highly soluble base is called _____.
EASY
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q II
Yellow of the turmeric is used as an _____ to test the presence of a base. 
EASY
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q II
A substance that is neither acidic nor basic is called _____.
EASY
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q III

Give reasons for the following:

Tamarind is sour to taste.

MEDIUM
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q III

Give reasons for the following:

We must not taste any substance without knowing about its chemical nature.

MEDIUM
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q III

Give reasons for the following:

Lime water turns milky when we breathe through it.

EASY
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q III

Give reason for the following:

pH of pure water is 7.