MCQ
Value of $n$ in above reaction is


- ✓$3$
- B$4$
- C$5$
- D$6$


Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| Compound | $\ce{NH_3}$ | $\ce{PH_3}$ | $\ce{AsH_3}$ | $\ce{SbH_3}$ |
| $\Delta_{\text{diss}}(\text{E}-\text{H})/\text{kJ mol}^{-1}$ | $389$ | $322$ | $297$ | $255$ |

The correct order of $S_N1$ reactivity is
Statement $I :$ In $CuSO _{4} .5 H _{2} O , Cu - O$ bonds are present.
Statement $II :$ In $CuSO _{4} .5 H _{2} O$, ligands coordinating with $Cu$ $(II)$ ion are $O$-and $S$-based ligands.
In the light of the above statements, choose the correct answer from the options given below
