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7th CBSE
IMPORTANT
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A salt is formed when an acid and a base react.

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Important Questions on Acids, Bases and Salts

MEDIUM
7th CBSE
IMPORTANT
EUREKA PLUS Revised Bringing Science to Life>Chapter 5 - Acids, Bases and Salts>In Class>Think and answer

If one of the following household materials can be used to lessen pain caused by a wasp sting, which one would it be and why? 

Lemon juice, Washing soda, Curd, Vinegar. 

EASY
7th CBSE
IMPORTANT
EUREKA PLUS Revised Bringing Science to Life>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q 1
An element common to all acids is
EASY
7th CBSE
IMPORTANT
EUREKA PLUS Revised Bringing Science to Life>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q 2
One of the properties of an acid is that it
EASY
7th CBSE
IMPORTANT
EUREKA PLUS Revised Bringing Science to Life>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q 3
Carbon dioxide gas from the air mixes with rainwater and forms
MEDIUM
7th CBSE
IMPORTANT
EUREKA PLUS Revised Bringing Science to Life>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q 4
What products are formed when an acid reacts with a base?
EASY
7th CBSE
IMPORTANT
EUREKA PLUS Revised Bringing Science to Life>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q 5
The acid formed by bacteria in the mouth is a 
EASY
7th CBSE
IMPORTANT
EUREKA PLUS Revised Bringing Science to Life>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q 1
Tamarind and curd taste sour because they contain acids.
EASY
7th CBSE
IMPORTANT
EUREKA PLUS Revised Bringing Science to Life>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q 2
Carbonic acid is a strong acid.