Tag: preparation of gases

Quizzes (3) Questions (29)

Questions Related to preparation of gases

Multiple choice chemistry preparation of gases nitrogen gas component of air - nitrogen nitrogen

On heating a mixture of $NH _{4}Cl$ and $KNO _{2}$, we get:

$NH _{4}NO _{3}$
$KNH _{4}(NO _{3}) _{2}$
$N _{2}$
$NO$

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Multiple choice chemistry preparation of gases nitrogen gas component of air - nitrogen nitrogen

On heating ammonium dichromate and barium azide separately we get:

$N _{2}$ in both cases
$N _{2}$ with ammonium dichromate and $NO$ with barium azide
$N _{2}O$ with ammonium dichromate and $N _{2}$ with barium azide
$N _{2}O$ with ammonium dichromate and $NO _{2}$ with barium azide

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Multiple choice chemistry preparation of gases nitrogen gas component of air - nitrogen nitrogen

Concentrated nitric acid on reacting with any metal like copper releases gas with an irritating odour :

$H _2 S$
$CuS$
$H _2$
$NO _2$

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Multiple choice chemistry preparation of gases nitrogen gas component of air - nitrogen nitrogen

Nitrogen is liberated by the thermal decomposition of :

$NH _4NO _2$
$NaN _3$
$(NH _4) _2Cr _2O _7$
All of these

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Multiple choice chemistry preparation of gases nitrogen gas component of air - nitrogen nitrogen

Out of the following which does not liberate $N _2$ gas on heating?

$NaNO _2+NH _4Cl$
$Ba(N _3) _2$
$O _3+NO$
$(NH _4) _2Cr _2O _7$

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Multiple choice chemistry preparation of gases nitrogen gas component of air - nitrogen nitrogen

Among the following compounds, which on heating do not produce ${ N } _{ 2 }$?

${ \left( { NH } _{ 4 } \right) } _{ 2 }{ Cr } _{ 2 }{ O } _{ 7 }$
${ NH } _{ 4 }CI+Na{ NO } _{ 2 }$
${ NH } _{ 4 }CI+CaO$
$Ba{ \left( { N } _{ 3 } \right) } _{ 2 }$

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Multiple choice chemistry preparation of gases nitrogen gas component of air - nitrogen nitrogen

20 ml of mixture of $N _{2}$ and $CH _{4}$ was exploded with excess of air. There is contraction of 5 ml in volume after treatment with KOH solution, what is the percentage of $N _{2}$ in the mixture?($N _{2}$ is inert)

$25%$
$50%$
$87.5%$
$80%$

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Multiple choice chemistry preparation of gases nitrogen gas component of air - nitrogen nitrogen

Which of the following compound does not liberate nitrogen with $HNO _{2}$?

Carbamide
Primary amine
Secondary amine
Alkanamide

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Multiple choice chemistry preparation of gases nitrogen gas component of air - nitrogen nitrogen

Which of the following compounds does not give nitrogen on heating?

$NaN _3$
$(NH _4) _2SO _4$
$NH _4NO _2$
$(NH _4) _2Cr _2O _7$.

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Multiple choice chemistry preparation of gases nitrogen gas component of air - nitrogen nitrogen

Which of the chemical(s) is/are related to Solvay process directly or indirectly?

$K C l$
$C O _ { 2 }$
$N H _ { 3 }$
$C a ( O H ) _ { 2 }$

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