MCQ
When beryllium is bombarded with $\alpha $-particles, extremely penetrating radiations which cannot be deflected by electrical or magnetic field are given out. These are
- AA beam of protons
- B$\alpha $-rays
- ✓A beam of neutrons
- D$X-$ rays
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| Column $I$ | Column $II$ |
| $(A)$ Silica gel | $(i)$ Transistor |
| $(B)$ Silicon | $(ii)$ Ion-exchanger |
| $(C)$ Silicone | $(iii)$ Drying agent |
| $(D)$ Silicate | $(iv)$ Sealant |
Given : $K_f (H_2O)$ = $2\ K\ kg\ mole^{-1}$, $K_{sp} (PbCl_2)$ = $4 × 10^{-6}$
(Assume molarity to be equal to molality) .....$^oC$