In the following reaction, consider the following statements 2 Cr ( OH )3+3 H 2 O 2+4 OH - arrow 2 CrO 42-+8 H 2 O I. There is colour change from green precipitate to yellow coloured solution II Oxidation number of Cr changes from +3 to +6 III. Oxidation number of O in H 2 O 2 changes fro -2 to -1 Select the correct statements(s)

Question

In the following reaction, consider the following statements 2 Cr ( OH )3+3 H 2 O 2+4 OH - arrow 2 CrO 42-+8 H 2 O I. There is colour change from green precipitate to yellow coloured solution II Oxidation number of Cr changes from +3 to +6 III. Oxidation number of O in H 2 O 2 changes fro -2 to -1 Select the correct statements(s) (A) I only (B) I and II (C) II only (D) I and III

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/a7b54fcfcff818cb4bf0deba3b5a1a11-.png" /> III. False as O.N. of O in H 2 O 2 changes from (-1) to (-2)

I only

I and II

II only

I and III

III. False as O.N. of O in H2​O2​ changes from (-1) to (−2)

III. False as O.N. of $O$ in $H_{2} O_{2}$ changes from (-1) to $(- 2)$