MCQ
Malachite is an are of :
- AIron
- ✓Copper
- CMercury
- DZinc
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

| Metal rod | Number of paper clips picket uo when thre is a current in the coil | Number of paper clips attracted when the current is switched off |
| $(a)$ | $1$ | $0$ |
| $(b)$ | $20$ | $2$ |
| $(c)$ | $35$ | $0$ |
| $(d)$ | $35$ | $30$ |
| $\ce{P}$ | $\ce{Q}$ | $\ce{R}$ |
| $\ce{Ru}$ | $\ce{Rh}$ | $\ce{S}$ |
| $\ce{Os}$ | $\ce{Lr}$ | $\ce{Pr}$ |