MCQ
The molecule which is having maximum number of lone pair
- A$SiF_4$
- B$BrF_3$
- C$XeF_2$
- ✓$SF_4$

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| List $I$ (molecules/ions) | List $II$ (No. of lone pairs of $e ^{-}$ on central atom) |
| $A$ $IF_7$ | $I$ Three |
| $B$ $ICl^{-}_4$ | $II$ One |
| $C$ $XeF_6$ | $III$ Two |
| $D$ $XeF_2$ | $IV$ Zero |
Choose the correct answer from the options given below:
(Given: Atomic mass of $\mathrm{C}=12, \mathrm{H}=1, \mathrm{O}=16 \mathrm{u}$ )
$(i)$ they are polymers with hydrophobic character
$(ii)$ they are biocompatible
$(iii)$ in general, they have high thermal stability and low dielectric strength
$(iv)$ usually they are resistant to oxidation and used as greases.
| List $I$ | List $II$ |
| $1E_1\,\,1E_2\,\,1E_3$ | |
| $(A)$ $1510$ $-$ $-$ | $(1)$ $H$ |
| $(B)$ $495$ $6500$ $10200$ | $(2)$ $Li$ |
| $(C)$ $840$ $1630$ $13100$ | $(3)$ $Be$ |
| $(D)$ $600$ $2050$ $3100$ | $(4)$ $B$ |
( $1E$ in $KJ\,mol^{-1}$ )
$AgIO_{3(s)} \rightleftharpoons Ag^+_{(aq)} +IO^-_{3(aq)}.$
If the solubility product constant $K_{sp}$ of $AgIO_3$ at a given temperature is $1. 0 \times 10^{-8},$ what is the mass of $AgIO_3$ contained in $100\, ml$ of its saturated saolution ?