Match the following columns:

	Column-I		Colume-II
a)	$\mathrm{HCN}$	p)	Thio acid
b)	${\mathrm{H}}_2{\mathrm{S}}_2{\mathrm{O}}_3$	q)	Oxy acid
c)	${\mathrm{HNO}}_3$	r)	At least one atom is sp hybridised
d)	${\mathrm{H}}_2{\mathrm{CO}}_2\mathrm{S}$	s)	+5 oxidation state is associated with mny one atom
		t)	Planarity is observed for underlined atoms

 

The core carbon atom in hydrogen cyanide is sp hybridised and has a 2 sigma bond. For the atoms in this that are underlined, planarity is seen.
The inorganic substance thiosulfuric acid has the formula H₂S₂O₃.

$$\begin{gathered} \mathrm{O} \\ \mathrm{H}-\mathrm{O}-\stackrel{ \overline{)\overline{) }}}{\mathrm{C}}-\mathrm{S}-\mathrm{H} \end{gathered}$$
A nitrogen oxoacid with the formula HNO₃ is nitric acid, in which the nitrogen atom is linked to a hydroxyl group and the other two oxygen atoms by analogous bonds.
Thiosulfurous S-acid is a sulfurothious acid.

Hence,the option B is correct.