MCQ
An element $X$ with the electronic configuration $1{s^2},\,2{s^2}2{p^6},\,3{s^2}$ would be expected to form the chloride with the formula
- A$XC{l_3}$
- ✓$XC{l_2}$
- C$XCl$
- D${X_2}Cl$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

| List$-I$ | List$-II$ | ||
| $(a)$ | Sucrose | $(i)$ |
$\beta$ -D-Galactose and $\beta$ -D-Glucose |
| $(b)$ | Lactose | $(ii)$ | $\alpha$ -D-Glucose and $\beta$ -D-Fructose |
| $(c)$ | Maltose | $(iii)$ | $\alpha$ -D-Glucose and $\alpha$ -D-Glucose |
Choose the correct answer from the options given below:

$1.$ Boron is approximately $sp^3$ hybridized
$2.$ $B-H-B$ angle is $180^o$
$3.$ There are two terminal $B-H$ bonds for each boron atom
$4.$ There are only $12$ bonding electrons available
Of these statements
then the solubility of $AB _{2}$ in pure water is......... $\times 10^{-4}$ $mol$ $L ^{-1}$.
[Assuming that neither kind of ion reacts with water]
Select the correct option for $'X'$ and $'Y'$