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An inorganic compound on strong heating ...

An inorganic compound on strong heating gave a blackish brown powder and two oxides of sulphur. The powder was dissolved in HC1 when a yellow solution was obtained which gave a blood red coloured solution with thiocyanide ions. The inorganic compound may be:

A

`CuSO_4`

B

` ZnSO_4`

C

` NiSO_4`

D

` FeSO_4`

Text Solution

Verified by Experts

The correct Answer is:
D
`2Fe SO_(4) to Fe_2 O_(3) _ SO_2 + SO_3 `
` Fe_2 O_3 +6 HCl to underset("yellow soln")( 2FeCL_3) + 3 H_2 O`
` FeCl_3 + CNS^(-) to underset("Blood red coloured soln ")(Fe (CNS)_3 3Cl^(-)`
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BRILLIANT PUBLICATION-THE D-AND F-BLOCK ELEMENTS-QUESTIONS (LEVEL-III)
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