Question

Which of the acid possesses oxidising, reducing and complex forming properties?

• A. $HN{O}_3$
• B. $H_{2}S{O}_4$
• C. HCl
• D. $HN{O}_2$

Answer 1

The correct option is D $HN{O}_2$

In $HN{O}_3$,nitrogen is present in +5 oxidation state so it cannot acts as reducing agent.

In $H_{2}S{O}_4$,sulphur is present in +6 oxidation state so it cannot acts as reducing agent.

In $HCl$,chlorine is present in -1 oxidation state so it cannot acts as oxidising agent.

In $HN{O}_2$,nitrogen is present in +3 oxidation state so it can acts as oxidising and reducing agent.It has also complex forming properties.

So D is correct answer.