Download App

8.1. Aldehydes and ketones — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistry8.1. Aldehydes and ketones1 Mark
✓

Answer

Correct option: D.
Gattermann reaction
d
The given reaction is known as Gattermann reaction.In this reaction, aromatic compound such as benzene or phenol is treated with a mixture of $HCN$ and dry $HCl$ gas under pressure and in the presence of anhydrous aluminum chloride or zinc chloride to introduce a formyl group in the aromatic nucleus.

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 8.1. Aldehydes and ketones→8.1. Aldehydes and ketones — all question types→Chemistry STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Which one of the following would produce maximum elevation in boiling point
→
The $OH$ group of an alcohol or the $ - COOH$ group of a carboxylic acid can be replaced by $ - Cl$ using
→
Which of the following is used in the manufacture of ethanol?
→
The pressure used to stop the process of osmosis is called :
→
$IUPAC$  name of $[Co(ONO){(N{H_3})_5}C{l_2}]$ is
→
$L-$isomer of a compound $'A'$ $\left( C _{4} H _{8} O _{4}\right)$ gives a positive test with $\left[ Ag \left( NH _{3}\right)_{2}\right]^{+}$. Treatment of $'A'$ with acetic anhydride yield triacetate derivative. Compound $'A'$ produces an optically active compound $(B)$ and an optically inactive compound $(C)$ on treatment with bromine water and $HNO _{3}$ respectively, compound $( A )$ is ....
→
On the basis of information given below mark the correct option.
Information: On adding acetone to methanol some of the hydrogen bonds between methanol molecules break.
→
Arrange the following in order of increasing reactivity (least $\to$ most) towards nucleophile

$\underset{1}{\mathop{\begin{matrix}
   O\,\,\,\,\,\,\,\,\,\,\,\,  \\
   ||\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   C{{H}_{3}}COCHC{{H}_{3}}  \\
\end{matrix}}}\,$   $\underset{2}{\mathop{\begin{matrix}
   \,\,\,\,O \\
   \,\,\,\,|| \\
   C{{H}_{3}}CCl  \\
\end{matrix}}}\,$   $\underset{3}{\mathop{\begin{matrix}
   O\,\,\,\,\,\,\,\,\,  \\
   ||\,\,\,\,\,\,\,\,\,  \\
   C{{H}_{3}}CNHC{{H}_{3}}  \\
\end{matrix}}}\,$

→
The number of electrons involved in the reduction of permanganate to manganese dioxide in acidic medium is $.......$.
→
Which one is liquid at room temperature :
→