Question

Match List I with List II :

List-I Elements		List-Il Properties
a	$Li$	i	Poor water solubility of $I^{-}$ salt
b	$Na$	ii	Most abundant element in cell fluid
c	$K$	iii	Bicarbonate salt used in fire extinguisher
d	$Cs$	iv	Carbonate salt decomposeseasily on heating

Choose the correct answer from the options given below:

• A. (a)-(iv),(b)-(iii),(c)-(ii),(d)-(i)
• B. (a)-(i),(b)-(iii),(c)-(ii),(d)-(iv)
• C. (a)-(iv),(b)-(ii),(c)-(iii),(d)-(i)
• D. (a)-(i),(b)-(ii),(c)-(iii),(d)-(iv)

Answer 1

Answer: (A)

(a) $C_{S}I$ salt is poor water soluble due to it's low hydration energy
(b) $NaHC{O}_3$ is used in fire extinguisher
(c) $K$ is most abundant element in cell fluid
(d) $L{i}_{2}C{O}_3$ decomposes easily due to high covalent character caused by small size $L{i}^{+}$cation.