JEE Advanced · Chemistry · 21. p Block (G15-18)

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

A Can also be prepared by reaction of $P_{4}$ and $H N O_{3}$
B Is diamagnetic
C Contains one N-N bond
D Reacts with Na metal producing a brown gas

Verified Solution

Answer & Solution

Correct Answer

(D) Reacts with Na metal producing a brown gas

Step-by-step Solution

Detailed explanation

$\text P _4\text O _{10}+4 \text{HNO} _3 \xrightarrow{\text {dehydration} \text{HNO} _3} 4\left(\text{HPO} _3\right)+$ $2\text N_2\text O _5$ (required product)
A] $\text P _4+20 \text{HNO} _3 \rightarrow 4\text H _3 \text{PO} _4+20 \text{NO} _2 \uparrow$ $+~4\text H _2\text O$
B]

N_{2} O_{5}

is diamagnetic in nature
C]

N_{2} O_{5}

contains one N - O - N bond not N - N bond.
D]

N a + N_{2} O_{5} \to N a N O_{3} + N O_{2} ↑ (b r o w n g a s)

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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List - I	List - II
(P)	1. Inversion of configuration
(Q)	2. Retention of configuration
(R)	3. Mixture of enantiomers
(S)	4. Mixture of structural isomers
	5. Mixture of diastereomers

The nitrogen containing compound produced in the reaction of HNO3 with P4O10

Step-by-step Solution

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