When dilute H2SO4 and H2O2 are added to a solution of chromate ions, an intense blue colour is produced, which is stable in ether. This is due to the formation of

Question

When dilute H2SO4 and H2O2 are added to a solution of chromate ions, an intense blue colour is produced, which is stable in ether. This is due to the formation of (A) Cr2O72 - (B) Cr2O3 (C) CrO5 (D) CrO3

Tardigrade Admin · Accepted Answer

The blue colour is due to the formation of CrO5 CrO42 -+2H++2H2O2 arrow underset(B l u e)C r O5+3H2O

Q. When dilute $H_{2} S O_{4}$ and $H_{2} O_{2}$ are added to a solution of chromate ions, an intense blue colour is produced, which is stable in ether. This is due to the formation of

$C r_{2} O_{7}^{2 -}$

$C r_{2} O_{3}$

$C r O_{5}$

$C r O_{3}$

The blue colour is due to the formation of $C r O_{5}$

$C r O_{4}^{2 -} + 2 H^{+} + 2 H_{2} O_{2} \to (Bl u e) C r O_{5} + 3 H_{2} O$

Q. When dilute H2​SO4​ and H2​O2​ are added to a solution of chromate ions, an intense blue colour is produced, which is stable in ether. This is due to the formation of

Cr2​O72−​

Cr2​O3​

CrO5​

CrO3​