Identify the reaction which does not liberate {N}₂

Correct Answer is : NH4Cl{NH}₄{Cl}NH4Cl + Ca(OH)2{Ca}({OH})₂Ca(OH)2 → ?

({NH}₄)₂{Cr}₂{O}₇ [Δ]{} ?

{NH}₄{Cl} + {Ca}({OH})₂ → ?

Correct Answer is : NH4Cl{NH}₄{Cl}NH4Cl + Ca(OH)2{Ca}({OH})₂Ca(OH)2 → ?

Test Index

AP EAMCET Engineering 2018 Apr 22 Shift 1 Paper

Question : 146 of 160

Marks: +1, -0

\mathrm{N}_2

Solution:

(1)

2\mathrm{NaN}_3 \xrightarrow[\Delta]{} 2\mathrm{Na}+3\mathrm{N}_2

(2)

(\mathrm{NH}_4)_2\mathrm{Cr}_2\mathrm{O}_7 \xrightarrow{\Delta} \mathrm{Cr}_2\mathrm{O}_3

+\mathrm{N}_2+4\mathrm{H}_2\mathrm{O}

(3) The reaction of ammonium chloride with calcium hydroxide form

\mathrm{CaCl}_2

instead of

\mathrm{N}_2

as shown below.

2\mathrm{NH}_4\mathrm{Cl}+\mathrm{Ca}(\mathrm{OH})_2 \rightarrow \mathrm{CaCl}_2

+2\mathrm{NH}_4\mathrm{OH}

(4)

\mathrm{Ba}(\mathrm{N}_3)_2 \xrightarrow[\Delta]{} \mathrm{Ba}+3\mathrm{N}_2

Therefore, reaction (3) does not liberate

\mathrm{N}_2

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