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A metal sulphide (A) gives (B) gas with ...

A metal sulphide (A) gives (B) gas with rotten egg and (C) a colourless sulphates, when treated with dil. `H_(2)SO_(4)` (B) reacts with `K_(2)Cr_(2)O_(7)//H^(+)` to form (D) a white grey element. (D) burns in oxygen to yield (E) a colourless gas. If (B) is added in (E), it gives (D) and colourless liquid, which turns anhydrous `CuSO_(4)` blue. (C) gives a precipitate with `NH_(3(aq))` or NaOH which dissolves in excess of NaOH.
B is

A

`SO_(2)`

B

`SO_(3)`

C

`H_(2)S`

D

`CS_(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
Due to formation of `H_(2)S` gas
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