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CGP EDU Academic Team
Published on: August 14, 2026
A substance on treatment with dilute H 2 SO 4 liberates a colourless gas which produces (i) turbidity with baryta water and (ii) turns acidified dichromate solution green. The reaction indicates the presence of :
Text Solution
Verified by ExpertsThe correct answer is:
C
SO 32– + Ba(OH) 2 — → BaSO 3 ↓ (white) + 2OH – .
3SO 2 + Cr 2 O 72– + 2H + — → 2Cr 3+ (green colour solution) + 3SO 42– + H 2 O.
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