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A and B are two salts. A with dilute HCl...

A and B are two salts. A with dilute HCl and B with conc. `H_2SO_4` react to give reddish brown vapours, hence A and B respectively are:

A

NaBr, `NaNO_3`

B

`NaNO_3`, NaBr

C

NaBr, `NaNO_2`

D

`NaNO_2`, NaBr

Text Solution

Verified by Experts

The correct Answer is:
D
`NaNO_2` gives `NO_2` (brown) with dil. acids, whereas NaBr and `NaNO_2` both give brown vapours of `Br_2` and `NO_2` respectively with conc, acids.
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