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P Block Elements question

2025 · Shift 1 · Q1

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JEE Advanced
Chemistry
P Block Elements
2025 · Shift 1 · Q1

P Block Elements question

2025 · Shift 1 · Q1

JEE AdvancedChemistryP Block ElementsMCQ+3 / −1

The heating of

NH_4NO_2

at 60–70 °C and

NH_4NO_3

at 200–250 °C is associated with the formation of nitrogen containing compounds X and Y, respectively. X and Y, respectively, are

A
$N_2$ and $N_2O$
B
$NH_3$ and $NO_2$
C
$NO$ and $N_2O$
D
$N_2$ and $NH_3$

View written solutionFree

Correct answer: A

Thermal decomposition of $NH_4NO_2$

Ammonium nitrite is unstable and on gentle heating decomposes as:

$NH_4NO_2 \rightarrow N_2 + 2H_2O$

So, the nitrogen-containing product $X$ is:

$X = N_2$

Thermal decomposition of $NH_4NO_3$

Ammonium nitrate on heating at about $200$ – $250^\circ C$ decomposes as:

$NH_4NO_3 \rightarrow N_2O + 2H_2O$

So, the nitrogen-containing product $Y$ is:

$Y = N_2O$

Match with options

Thus, $X$ and $Y$ are respectively:

$N_2 \text{ and } N_2O$

This corresponds to Option A.

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