MCQ
In the given reaction,
CH= CH2(g) + H2(g) → CH3—CH3(g)
 ethene undergoes:
  • A
    Reduction process.
  • B
    Oxidation process.
  • C
    Addition process.
  • D
    All of these.

Answer

  1. Reduction process.

Explanation:

CH2=CH2 + H—H → H3C—CH3

(Addition of hydrogen)

Because of the addition of hydrogen, there occurs reduction of ethylene.

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

Calculate the work done (in $J$ ) when $4.5\,g$ of $H_2O_2$ reacts against a pressure of $1.0\, atm$ at $25\,^oC$. $[2H_2O_{2(l)} \to O_{2(g)} + 2H_2O_{(l)}]$
Suitable product of this reaction is
$\begin{array}{*{20}{c}}
  {C{H_3} - CH - C{O_2}K} \\ 
  {|\,\,\,\,\,\,\,\,} \\ 
  {C{H_3} - CH - C{O_2}K} 
\end{array}\xrightarrow{{electrolysis}}(A)\,(Major)$

Major product $(A)$ of the above reaction

${H_3}B{O_3}\,\xrightarrow{{{T_1}}}X\,\xrightarrow{{{T_2}}}Y\,\xrightarrow{{\operatorname{Re} d\,\,\,hot}}{B_2}{O_3}$

if $T_1 < T_2$ then $X$ and $Y$ respectively are

A $124\ W$ bulb converts only $15\ \%$ of the energy supplied to it into visible light of wavelength $640\  nm$ . How many photons are emitted by the light bulb in one second
Which of the following set of quantum numbers belong to highest energy
$CH \equiv CH\xrightarrow{{\operatorname{Re} d\,Hot\,Fe\,tube}}A\xrightarrow[{Dark}]{{C{l_2}/FeC{l_3}}}B\xrightarrow[{Anhy.\,AlC{l_3}}]{{C{H_3} - Cl}}C$ (Major)

Product $'C'$ is

The option($s$) with correct sequence of reagents for the conversion of $P$ to $Q$ is(are)

$(A) i)$ Lindlar's catalyst, $H _2$; $ii$) $SnCl _2 / HCl$; iii) $NaBH _4$; iv) $H _3 O ^{+}$

$(B) i)$ Lindlar's catalyst, $H _2$; $ii$) $H _3 O ^{+}; iii)$ $SnCl _2 / HCl$; iv) $NaBH _4$

$(C) i)$ $NaBH _4; ii)$ $SnCl _2 / HCl; $iii$)$ $H _3 O ^{+}; iv)$ Lindlar's catalyst, $H _2$

$(D) i)$ Lindlar's catalyst, $H _2$; $ii$) $NaBH _4; iii)$ $SnCl _2 / HCl; iv)$ $H _3 O ^{+}$

Thiophene and benzene are separated by
Compare the basic strengths of compounds given: