MCQ
When heated $N{H_3}$ is passed over $CuO$ gas evolved is
  • ${N_2}$
  • B
    ${N_2}O$
  • C
    $HN{O_3}$
  • D
    $N{O_2}$

Answer

Correct option: A.
${N_2}$
a
When ammonia is heated and passed over solid copper($II$)oxide at high temperatures, nitrogen gas is formed.

$2 NH _3( g )+3 CuO ( s ) \rightarrow N _2( g )+3 Cu ( s )+3 H _2 O ( g )$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Total number of compounds with Chiral carbon atoms from following is___________.   $IMAGE$

$ \mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}\left(\mathrm{NO}_2\right)-\mathrm{COOH} $

$ \mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CHBr}-\mathrm{CH}_2-\mathrm{CH}_3 $

$ \mathrm{CH}_3-\mathrm{CH}(\mathrm{I})-\mathrm{CH}_2-\mathrm{NO}_2 $

$ \mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}(\mathrm{OH})-\mathrm{CH}_2 \mathrm{OH} $

$ \mathrm{CH}_3-\mathrm{CH}-\mathrm{CH}(\mathrm{I})-\mathrm{C}_2 \mathrm{H}_5 $

Which compound undergoes nitration readily?
When phenol reacts with ammonia in presence of $CuC{l_2}$ at  $300\,^o C,$  it gives
The incorrect statement among the following is
The solubility product of $AgCl$ is $1.8 \times 10^{-10}$.Precipitation of $AgCl$ will  occur by mixing which of the following solutions when mixed in equal volume ?
Which one of the following compounds is not coloured
Consider the following reactions :

$(i)$ Glucose $+ ROH \quad \stackrel{\text { dry } HCl }{\longrightarrow}$ Acetal

$\xrightarrow[{{{\left( {C{H_3}CO} \right)}_2}O}]{{x\,eq.of}}$ acetyl derivative

$(ii)$ Glucose $\xrightarrow{{Ni/{H_2}}}A\xrightarrow[{{{\left( {C{H_3}CO} \right)}_2}O}]{{y\,\,eq.\,of}}$ acetyl derivative.

$(iii)$ Glucose $\xrightarrow[{{{\left( {C{H_3}CO} \right)}_2}O}]{{z\,ed.\,of}}$ acetyl derivative.

$' x ^{\prime},{ }^{\prime} y ^{\prime}$ and ${ }^{\prime} z^{\prime}$ in these reactions are respectively.

Which of the Phosphorus oxoacid can create silver mirror from $AgNO _3$ solution ?
The number of incorrect statement/s from the following is

$A$. The successive half lives of zero order reactions decreases with time.

$B$. A substance appearing as reactant in the chemical equation may not affect the rate of reaction

$C$. Order and molecularity of a chemical reaction can be a fractional number

$D$. The rate constant units of zero and second order reaction are $mol\, L ^{-1} s ^{-1}$ and $mol ^{-1} Ls ^{-1}$ respectively

Mass of methane required to produce $22 \mathrm{~g}$ of $\mathrm{CO}_2$ after complete combustion is ___________$g.$ (Given Molar mass in $g$ mol-1 $\mathrm{C}=12.0$  $ \mathrm{H}=1.0 $  $ \mathrm{O}=16.0)$