Which of the following is a nitric acid anhydride?
A.
$$NO$$
B.
$$N{O_2}$$
C.
$${N_2}{O_5}$$
D.
$${N_2}{O_3}$$
Answer :
$${N_2}{O_5}$$
Solution :
Dinitrogen pentaoxide $$\left( {{N_2}{O_5}} \right)$$ is prepared by dehydrating the concentrated nitric acid with phosphorus pentoxide.
$$4HN{O_3} + {P_4}{O_{10}} \to 2{N_2}{O_5} + HP{O_3}$$
So, $${{N_2}{O_5}}$$ is regarded as anhydride of $$HN{O_3}.$$
Releted MCQ Question on Inorganic Chemistry >> P - Block Elements
Releted Question 1
The reddish brown coloured gas formed when nitric oxide is oxidised by air is