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Iron sulphide is heated in air to form A...

Iron sulphide is heated in air to form A, an oxide of sulphur. A is dissolved in water to give an acid. The basicity of this acid is..

A

2

B

3

C

1

D

Zero

Text Solution

Verified by Experts

The correct Answer is:
A
`4FeS_2 + 11O_2 to 2Fe_2O_3 + 8SO_2`
`SO_2 + H_2 to H_2SO_3`
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