s-Block ElementsMedium
Question
Which of the following compounds on reaction with Na2O2 gives yellow colour compound ?
Options
A.Zn(OH)2
B.Cr(OH)3
C.Al(OH)3
D.None
Solution
Cr(OH)3 + 3O22- → 2CrO42- (yellow) + 2OH- + 2H2O.
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