Chemistry, asked by HarshaVardhan2112, 1 year ago

When SO₂ is passed through acidified solution of potassium dichromate, then chromium sulphate is formed. The change in valency of chromium is
(a) +4 to +2
(b) +5 to +3
(c) +6 to +3
(d) +7 to +2

Answers

Answered by sourabh2836

1

answer should be c +6 to +3

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