EASY
7th CBSE
IMPORTANT
Earn 100

The substance which turns blue litmus red is
 

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Important Questions on Acids, Bases and Salts

MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 5 - Acids, Bases and Salts>FORMATIVE & SUMMATIVE ASSESSMENTS>Q 3

A base
 

MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 5 - Acids, Bases and Salts>FORMATIVE & SUMMATIVE ASSESSMENTS>Q 4
Baking soda turns
 
MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 5 - Acids, Bases and Salts>FORMATIVE & SUMMATIVE ASSESSMENTS>Q 5
China rose indicator turns green with the addition of a solution. The solution is
MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 5 - Acids, Bases and Salts>FORMATIVE & SUMMATIVE ASSESSMENTS>Q 1

Acids obtained from minerals are called 

MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 5 - Acids, Bases and Salts>FORMATIVE & SUMMATIVE ASSESSMENTS>Q 2

Write one word for the following:

The bases which dissolve in water.

MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 5 - Acids, Bases and Salts>FORMATIVE & SUMMATIVE ASSESSMENTS>Q 3
Write one word for the following:
A base used in whitewashing. (Calcium hydroxide/ Magnesium hydroxide)
MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 5 - Acids, Bases and Salts>FORMATIVE & SUMMATIVE ASSESSMENTS>Q 4
A substance that changes its colour when added to an acid or a base.
 
MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 5 - Acids, Bases and Salts>FORMATIVE & SUMMATIVE ASSESSMENTS>Q 5
A natural indicator which is pink in neutral solution and changes to green in basic solution.