Q.

A solution of chromic acid in sulphuric forms blue colour solution due to

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a

CrO5

b

H2Cr2O7

c

CrO3

d

CrO2

answer is A.

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Detailed Solution

(chromium Peroxide Blue coloured)K2Cr2O7+H2SO4+4H2O2→2CrO5+K2SO4+5H2O
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Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
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