Question

Which of the following compounds contains(s) no covalent bond(s) ?
$KCl,P{H}_3,O_2,B_2{H}_6,H_{2}S{O}_4$

• A. $KCl,B_2{H}_6,P{H}_3$
• B. $KCl,H_{2}S{O}_4$
• C. KCl
• D. $KCl,B_2{H}_6$

Answer 1

Answer: (C)

$KCl-$ lonic bond between $K^{+}$ and $C{l}^{-}$

$P{H}_3-$ Covalent bond between $P$ and $H$

$O_2-$ Covalent bond between $O$ atoms

$B_2{H}_6-$ Covalent bond between $B$ and $H$ atoms

$H_{2}S{O}_4-$ Covalent bond between $S$ and $O$ and also between $O$ and $H$.

$\therefore$ Compound having no covalent bonds is $KCl$ only.