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Preparation of Sulphur Dioxide

The heating o...

Question

The heating of concentrated sulphuric acid with copper turnings yields:

A

Copper sulphate

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B

Copper hydroxide

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C

Water

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D

Sulphur dioxide

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Solution

The correct options are
A Copper sulphate
C Water
D Sulphur dioxide
In the preparation of sulphur dioxide, copper sulphate and concentrated sulphuric acid is heated to produce copper sulphate, sulphur dioxide and water.
The reaction is:
$C u + 2 H_{2} S O_{4} h e a t - -- \to C u S O_{4} + S O_{2} + 2 H_{2} O$

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on heating with copper turnings and concentrated sulphuric acid liberates a reddish brown gas.

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Preparation of Sulphur Dioxide

Standard VIII Chemistry

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