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Introduction to Sulphuric Acid

On reaction w...

Question

On reaction with sulphuric acid, the copper sulphate crystals turn .

A

blue

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B

red

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C

white

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D

yellow

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Solution

The correct options are
A blue
C white
The blue colour of copper sulphate crystal is due to the presence of water of crystallisation.

Sulphuric acid being a dehydrating agent remove away the water of crystallisation. Thus, leaving behind a white crystal of copper sulphate.

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