HARD
7th CBSE
IMPORTANT
Earn 100

Litmus paper turns _____.
(i) blue in a base
(ii) blue in an acid
(iii) red in an acid
(iv) red in a base

42.86% studentsanswered this correctly

Important Questions on Acids, Bases and Salts

MEDIUM
7th CBSE
IMPORTANT
New Science Ahead>Chapter 7 - Acids, Bases and Salts>Exercises>Q 8
Baking soda turns _____.
MEDIUM
7th CBSE
IMPORTANT
New Science Ahead>Chapter 7 - Acids, Bases and Salts>Exercises>Q 9
A neutralisation reaction between a strong acid and a weak base forms _____.
HARD
7th CBSE
IMPORTANT
New Science Ahead>Chapter 7 - Acids, Bases and Salts>Exercises>Q 10
To neutralise the acids in soil, farmers add _____.
MEDIUM
7th CBSE
IMPORTANT
New Science Ahead>Chapter 7 - Acids, Bases and Salts>Exercises>Q 1
The soda that we drink contains a base.
MEDIUM
7th CBSE
IMPORTANT
New Science Ahead>Chapter 7 - Acids, Bases and Salts>Exercises>Q 2
An acid can be made concentrated by evaporating the water from it.
EASY
7th CBSE
IMPORTANT
New Science Ahead>Chapter 7 - Acids, Bases and Salts>Exercises>Q 3
Strong acids can burn the skin as they are corrosive.
MEDIUM
7th CBSE
IMPORTANT
New Science Ahead>Chapter 7 - Acids, Bases and Salts>Exercises>Q 4
Red litmus paper can he used to tell an acidic material from a neutral material.
MEDIUM
7th CBSE
IMPORTANT
New Science Ahead>Chapter 7 - Acids, Bases and Salts>Exercises>Q 5
China rose solution turns blue when acid is added to it.