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

Iron sulphide is heated in air to form A, an axide of sulphir. 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)
The reaction that takes place according to the queation is ,
`(2Fe_2S_3)+ (9O_2) to (2Fe_O_2) + (6SO_2)`
Iron sulphide
`(SO_2 +H_2O to H_2SO_3)`
Therefore Basicity of `(H_2So_3 = 2)`.
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