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Acidified solution turns green when is added to it. This is due to formation of:
Acidified $\text{K}_2\text{Cr}_2\text{O}_7$ solution turns green when $\text{Na}_2\text{SO}_3$ is added to it. This is due to formation of:
- (a)$\text{CrO}_4^{2-}$
- (b)$\text{Cr}_2(\text{SO}_3)_3$
- (c)$\text{Cr}_2\text{O}_3$
- (d)$\text{Cr}_2(\text{SO}_4)_3$
Answer
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From ISC 2024 Specimen Chemistry Paper 1, question 1(B)(iii).