Discussion Forum



1)

The nitrogen containing compound produced in the reaction of  $HNO_{3}$ with  $P_{4}O_{10}$


A) Can also be prepared by reaction of $P_{4}$ and $HNO_{3}$

B) is diamagnetic

C) contains one N-N bond

D) reacts with Na metal producing a brown gas

Answer:

Option B,D

Explanation:

$P_{4}O_{10}$  is  a dehydrating agent and converts $HNO_{3}$ into  $N_{2}O_{5}$

$2HNO_{3}\rightarrow N_{2}O_{5}+H_{2}O$

$P_{4}O_{10}+6H_{2}O\rightarrow 4H_{3}PO_{4}$

(a)  $P_{4}+20HNO_{3}\rightarrow4H_{3}PO_{4}+20NO_{2}+4H_{2}O$

 Thus , (a) is incorrect.

(b)  $N_{2}O_{5}$  has no unpaired electron and is thus, diamagnetic , (b) is correct

(c)          1422021518_c9.JPG

 There is no N-N bond,  thus (c) is incorrect

 (d)  $N_{2}O_{5}+Na\rightarrow NaNO_{3}+NO_{2}$

 $N_{2}O_{5}$ vapours of brownish colour. Thus, (d) is correct.