Download App

7. Alcohol, phenol and ethers — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistry7. Alcohol, phenol and ethers1 Mark
MCQ
In the reaction sequence $CH _{2}= CH _{2}$ $\xrightarrow[{{\text{acid}}}]{{{\text{Hypochlorgys}}}}X\xrightarrow{Y}$ $\begin{array}{*{20}{c}}
  {C{H_2}OH} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {C{H_2}OH} 
\end{array}$

$X$ and $Y$ respectively are:

 

  • A
    see figure and heat
  • B
    $CH _{3} CH _{2} Cl$ and $NaOH$
  • C
    $CH _{3} CH _{2} OH$ and $H _{2} SO _{4}$
  • ✓
    $CH _{2} ClCH _{2} OH$ and $NaHCO _{3}$
✓

Answer

Correct option: D.
$CH _{2} ClCH _{2} OH$ and $NaHCO _{3}$
d
The chemical reaction is shown below:

$H _{2} C = CH _{2}$ $\xrightarrow{{HOCl}}$ $\mathop {\begin{array}{*{20}{c}}
  {OH\,\,\,Cl} \\ 
  {|\,\,\,\,\,\,\,\,|} \\ 
  {{H_2}C - C{H_2}} 
\end{array}}\limits_{(X)} $$\xrightarrow{{NaHC{O_3}}}$$\mathop {\begin{array}{*{20}{c}}
  {C{H_2}OH} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {C{H_2}OH} 
\end{array}}\limits_{(Y)} $

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

Explore more

More "M.C.Q (1 Marks)" from 7. Alcohol, phenol and ethers→7. Alcohol, phenol and ethers — all question types→Chemistry STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

The decomposition of $NH _{3}$ on $Pt$ surface is a zero order reaction. If the value of rate constant is $2 \times 10^{-4}\,mole $ $liter^{-1}\, sec ^{-1}$ The rate of appearance of $N _{2}$ and $H _{2}$ are respectively.
→
$Y$ is
→
Bottles containing ${C_6}{H_5}I$ and ${C_6}{H_5}C{H_2}I$ lost their original labels.

They were labelled  $ A$  and  $B$ for testing.

$A$  and  $ B $ were separately taken in test tubes and boiled with $NaOH$ solution.

The end solution in each tube was made acidic with dilute $HN{O_3}$ and then some $AgN{O_3}$ solution was added.

Substance $B$  give a yellow precipitate.

Which one of the following statements is true for this experiment

→
The specific conductivity of a saturated solution of silver chloride is $2 \times 10^{-6}\, S\,cm^{-1}$ at $25\,^oC.$ What will be the solubility of silver chloride at $25\,^oC$ if molar conductivities at infinite dilution of $Ag^+$ and $Cl^-$ ions are $60$ and $80\,S\,cm^2\,mol^{-1}$ respectively -
→
Alkyl halides are prepared from alcohol by treating with
→
$\begin{array}{*{20}{c}}
  R \\ 
  H 
\end{array} > C = O\,\xrightarrow{{HS\,{{\rlap{-} (C{H_2}\rlap{-} )}_3}\,SH}}\,\xrightarrow[{n\, - \,BuLi}]{}$ $\xrightarrow{{{D_2}O}}\,\xrightarrow[{{H_2}O}]{{HgC{l_2}\,/\,CdC{O_3}}}$
→
The half life of a first order reaction is $69.35\,\sec $. The value of the rate constant of the reaction is .......... $\sec^{-1}$
→
Which statement is true for sodium nitro prusside?
→
$108\; \mathrm{g}$ of silver (molar mass $108\; \mathrm{g}\; \mathrm{mol}^{-1}$ ) is deposited at cathode from $AgNO_3 (aq)$ solution by a certain quantity of electricity. The volume (in $L$) of oxygen gas produced at $273 \;\mathrm{K}$ and $1\; bar$ pressure from water by the same quantity of electricity is ............. $\mathrm{litre}$
→
A closed vessel is maintained at a constant temperature. It is first evacuated and then vapour is injected into it continuously. The pressure of the vapour in the vessel is:
→