On passing `SO_2` in solution of `K_2Cr_2O_7` , it turn green due to the formation of

Question

On passing `SO_2` in solution of `K_2Cr_2O_7` , it turn green due to the formation of
A. `K_2Cr_2O_4`
B. Chromic acid
C. `Cr_2(SO_4)_3`
D. `FeSO_4`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Bleaching action of `SO_2` is due to its

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When `SO_2` is passed through acidified `K_2Cr_2O_7` solution

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Bleaching action of `SO_2` is due to

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When `SO_2` is passed through acidified solution of `H_2S`

2 Answers 5 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - C
`K_2Cr_2O_7 + H_2SO_4 + 3SO_2 to K_2SO_4 + Cr_2(SO_4)_3 + H_2O`

4 views Answered 2023-02-05 15:29