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A salt which on hearing with conc. H2 S...

A salt which on hearing with conc. `H_2 SO_4` gives violet vapours is

A

Iodide

B

Nitrate

C

Sulphate

D

Bromide

Text Solution

Verified by Experts

The correct Answer is:
A
`KI +underset("Conc.")(H_(2)SO_(4)) overset(Delta)toKHSO_(4) +HI`
Conc. `H_(2)SO_(4) +2HI to 2H_(2)O + underset("Vapour")underset("Violet")(I_(2)) + SO_(2) uarr`
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