MCQ
$\underbrace {2NO + {O_2}}_{(X)} \rightleftharpoons \underbrace {2N{O_2}}_{(Y)}\underset{{heat}}{\overset{{cold}}{\longleftrightarrow}}\underbrace {{N_2}{O_4}}_{(Z)}$

$X, Y$ and $Z$ can be described as

  • $X \to $ Colourless, $Y \to $ Brown, paramagnetic, $Z \to $ Colourless, diamagnetic
  • B
    $X \to $ Brown, $Y \to $ Colourless, diamagnetic, $Z \to $ Brown, paramagnetic
  • C
    $X \to $ Colourless, $Y \to $ Colourless, paramagnetic, $Z \to $ Brown, diamagnetic
  • D
    $X \to $ Brown, $Y \to $ Brown, paramagnetic, $Z \to $ Brown, diamagnetic

Answer

Correct option: A.
$X \to $ Colourless, $Y \to $ Brown, paramagnetic, $Z \to $ Colourless, diamagnetic
a
$\underbrace{2NO+{{O}_{2}}}_{\begin{smallmatrix} 
 Colourless \\ 
 gases 
\end{smallmatrix}}\rightleftharpoons $  $\underbrace{2N{{O}_{2}}}_{\begin{align}
   \,\,\,\,\,\,\,\,\,\,\,\,\,Brown, \\ 
  paramagnetic\,\,gas \\ 
  due\,to\,presence\,\,of \\ 
  an\,\,odd\,\,electron \\ 
\end{align}}$  $\underset{heat}{\overset{cold}{\longleftrightarrow}}$  $\underbrace{{{N}_{2}}{{O}_{4}}}_{\begin{smallmatrix} 
 Colourless, \\ 
 diamagnetic 
 \\ 
 \,\,\,\,\,\,\,\,\,solid 
\end{smallmatrix}}$

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

A reaction that takes place with the absorption of energy is
The given reaction is knows as :
The volume, in $mL ,$ of $0.02\, M K _{2} Cr _{2} O _{7}$ solution required to react with $0.288\, g$ of ferrous oxalate in acidic medium is........

(Molar mass of $Fe =56\, g\, mol ^{-1}$ )

Which of the following arrangement for the three halogens $Cl,$ $Br$ and $I$ when placed in the order of their increasing electron affinity is correct
The total change in the oxidation state of manganese involved in the reaction of $KMnO _4$ and potassium iodide in the acidic medium is $..........$.
Suppose the following reaction

Benzene $(C_6H_6)$ $+\,C{{H}_{3}}-CH=C{{H}_{2}}\,\xrightarrow{{{H}^{\oplus }}}A\xrightarrow{{{O}_{2}}}B$ $\xrightarrow{{{H}^{\oplus }}\,/\,\Delta }C+$$\begin{matrix}
   O  \\
   ||  \\
   C{{H}_{3}}-C-C{{H}_{3}}  \\
\end{matrix}$

The structure of intermediate compound $'B'$ will be

Among the following orbitals bond angle is minimum between
Product $(A)$ of the above reaction is (bromination occur not in the benzene ring)
It has been found that for a chemical reaction with rise in temperature by $9\, K$ the rate constant gets doubled. Assuming a reaction to be occurring at $300\, K$, the value of activation energy is found to be $......\,k\,J \,mol ^{-1}$. [nearest integer]

(Given $\ln 10=2.3, R =8.3 JK ^{-1} mol ^{-1}, \log 2=0.30$ )

Which of the following diagram show correct change in the ionic character of given compounds according to Fajans rule ?