P-Block Elements Ques 309

Question: Which of the following acid possesses oxidising, reducing and complex forming properties

[MNR 1985]

Options:

A) $ HNO_3 $

B) $ H_2SO_4 $

C) $ HCl $

D) $ HNO_2 $

Show Answer

Answer:

Correct Answer: D

Solution:

$ HNO_2 $ can be either reduced to nitric oxide $ (NO) $ or oxidised to nitric acid and hence it acts both as an oxidising as well as a reducing agent.

$ 2HNO_2\to 2NO+H_2O+[O] $

$ HNO_2+[O]\to HNO_3 $



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