MEDIUM
7th Jammu and Kashmir Board
IMPORTANT
Earn 100

You are given three unlabelled bottles A, B and C containing colourless solutions, such that one of them is acid, the other being basic and neutral. How will you distinguish between them by using china rose as an indicator?

Important Questions on Acids, Bases and Salts

HARD
7th Jammu and Kashmir Board
IMPORTANT
SCIENCE A TEXTBOOK FOR CLASS 7>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q 5
What do you understand by the term neutralisation? Describe an activity in which neutralisation of hydrochloric acid takes place with sodium hydroxide, using phenolphthalein as an indicator.
MEDIUM
7th Jammu and Kashmir Board
IMPORTANT
SCIENCE A TEXTBOOK FOR CLASS 7>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q 6
Explain why farmers add slaked lime to acidic soils.
MEDIUM
7th Jammu and Kashmir Board
IMPORTANT
SCIENCE A TEXTBOOK FOR CLASS 7>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q 6
Explain why soap solution or baking soda paste is applied on the part of body stung by a bee.
MEDIUM
7th Jammu and Kashmir Board
IMPORTANT
SCIENCE A TEXTBOOK FOR CLASS 7>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q 6
Explain why factory wastes and sewerage is neutralised before discharging in rivers.
MEDIUM
7th Jammu and Kashmir Board
IMPORTANT
SCIENCE A TEXTBOOK FOR CLASS 7>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q 6
Explain why antacids are used for relieving the stomach acidity?
MEDIUM
7th Jammu and Kashmir Board
IMPORTANT
SCIENCE A TEXTBOOK FOR CLASS 7>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q 7
Give four differences between the acids and the alkalis.
HARD
7th Jammu and Kashmir Board
IMPORTANT
SCIENCE A TEXTBOOK FOR CLASS 7>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q 8
Write an equation when hydrochloric acid neutralises sodium hydroxide.
EASY
7th Jammu and Kashmir Board
IMPORTANT
SCIENCE A TEXTBOOK FOR CLASS 7>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q 1
Name the acid which is present in the ant's sting.