EASY
7th Jammu and Kashmir Board
IMPORTANT
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The substances which show different colours in acids and bases are called indicators.

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Important Questions on Acids, Bases and Salts

EASY
7th Jammu and Kashmir Board
IMPORTANT
Milk of magnesia and slaked lime are examples of neutral substances.
MEDIUM
7th Jammu and Kashmir Board
IMPORTANT
Acid rain is caused by the excess of carbon dioxide in air.
MEDIUM
7th Jammu and Kashmir Board
IMPORTANT
Potassium hydroxide turns blue litmus red.
EASY
7th Jammu and Kashmir Board
IMPORTANT
Most of the fruits contain organic acids.
EASY
7th Jammu and Kashmir Board
IMPORTANT
Name three organic and three inorganic acids.
MEDIUM
7th Jammu and Kashmir Board
IMPORTANT
What are indicators? Name any three indicators and state the colour change which takes place in (i) acids and (ii) bases.
EASY
7th Jammu and Kashmir Board
IMPORTANT
What are neutral substances? Give examples of two neutral substances.
MEDIUM
7th Jammu and Kashmir Board
IMPORTANT
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?