Which of the following ion in aqueous medium has orange colour?

Question

Which of the following ion in aqueous medium has orange colour? (A)  Cr+3  (B)  Cr2O72-  (C)  MnO4-  (D)  MnO42-

Tardigrade Admin · Accepted Answer

Dichromate ion (Cr2O72-) has orange colour. The colour of chromium ion (Cr3+), permaganate ion (MnO4-) and maganate ion (MnO42-) are green, violet and green respectively.

Q. Which of the following ion in aqueous medium has orange colour?

$C r^{+ 3}$

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

$M n O_{4}^{-}$

$M n O_{4}^{2 -}$

Dichromate ion $(C r_{2} O_{7}^{2 -})$ has orange colour. The colour of chromium ion $(C r^{3 +}),$ permaganate ion $(M n O_{4}^{-})$ and maganate ion $(M n O_{4}^{2 -})$ are green, violet and green respectively.

Q. Which of the following ion in aqueous medium has orange colour?

Cr+3

Cr2​O72−​

MnO4−​

MnO42−​

Dichromate ion (Cr2​O72−​) has orange colour. The colour of chromium ion (Cr3+), permaganate ion (MnO4−​) and maganate ion (MnO42−​) are green, violet and green respectively.

$C r^{+ 3}$

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

$M n O_{4}^{-}$

$M n O_{4}^{2 -}$

Dichromate ion $(C r_{2} O_{7}^{2 -})$ has orange colour. The colour of chromium ion $(C r^{3 +}),$ permaganate ion $(M n O_{4}^{-})$ and maganate ion $(M n O_{4}^{2 -})$ are green, violet and green respectively.