The correct sequence of reagents for the preparation of Q and R is:

Options

A. `(i) Cr_2O_3, 770 K, 20 atm, (ii) CrO_2Cl_2, H_3O^–, (iii) NaOH, (iv) H_3O^–`
B. `(i) Mo_2O_3, Delta, (ii) CrO_2Cl_2, H_3O^–, (iii) NaOH, (iv) H_3O^–`
C. `(i) CrO_2Cl_2, H_3O^–, (ii) Cr_2O_3, 770 K, 20 atm, (iii) NaOH, (iv) H_3O^–`
D. ` (i) KMNO_4, OH^–, (ii) Mo_2O_3, Delta, (iii) NaOH, (iv) H_3O^–`

Answer

A