Name the gas that can readily decolourise acidified $K M n O_{4}$ solution.

S O_{2}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

N O_{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

P_{2} O_{5}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C O_{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $S O_{2}$
$S O_{2}$ readily decolourises pink violet colour of acidified $K M n O_{4}$ solution.
$2 K M n O_{4} + 5 S O_{2} + 2 H_{2} O \to K_{2} S O_{4} + 2 M n S O_{4} + 2 H_{2} S O_{4} (P i n k v i o l e t) (C o l o u r l e s s)$

Suggest Corrections

Similar questions

K M n O_{4}

K M n O_{4}

K M n O_{4}

K M n O_{4}

K M n O_{4}

Join BYJU'S Learning Program