MCQ
Reaction is called
- ✓Wolff-Kishner reaction
- BTischenko reaction
- CReformatsky reaction
- DGattermann reaction
✓
Answer
Correct option: A.
Wolff-Kishner reaction
a
It's Obvious
It's Obvious
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$\begin{matrix}
\begin{matrix}
C{{H}_{2}}OOCR' \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
\end{matrix}\,\,\, \\
CHOOCR\,\,\,\,\,\,\, \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
C{{H}_{2}}OOCR''' \\
\end{matrix}$ $\underset{\text{Hydrolysis}}{\mathop{\xrightarrow{\text{Enzyme}}}}$ $\begin{matrix}
\begin{matrix}
C{{H}_{2}}OH \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
\end{matrix} \\
CHOH\,\,\, \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
C{{H}_{2}}OH \\
\end{matrix}$ $+\begin{matrix}
\begin{matrix}
R'COOH \\
+ \\
\end{matrix} \\
R''COOH \\
+ \\
R'''COOH \\
\end{matrix}$
→\begin{matrix}
C{{H}_{2}}OOCR' \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
\end{matrix}\,\,\, \\
CHOOCR\,\,\,\,\,\,\, \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
C{{H}_{2}}OOCR''' \\
\end{matrix}$ $\underset{\text{Hydrolysis}}{\mathop{\xrightarrow{\text{Enzyme}}}}$ $\begin{matrix}
\begin{matrix}
C{{H}_{2}}OH \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
\end{matrix} \\
CHOH\,\,\, \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
C{{H}_{2}}OH \\
\end{matrix}$ $+\begin{matrix}
\begin{matrix}
R'COOH \\
+ \\
\end{matrix} \\
R''COOH \\
+ \\
R'''COOH \\
\end{matrix}$
The enzyme used in the above reaction is
The product formed in the following chemical reaction is :
Which kind of isomerism is exhibited by octahedral $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4 \mathrm{Br}_2\right] \mathrm{Cl}?$
→The major product of the following reaction is
→$\begin{array}{*{20}{c}}
{C{H_3}}\\
{|\,\,\,\,\,}\\
{{C_6}{H_5}C{H_2} - C - C{H_2} - C{H_3}}\\
{|\,\,\,\,\,}\\
{Br\,\,\,}
\end{array}$ $\xrightarrow[{{C_2}{H_5}OH}]{{{C_2}{H_5}ONa}}$
A trinitro compound, $1, 3,5$ tris-($4$-nitrophenyl) benzene, on complete reaction with an excess of $\mathrm{Sn} / \mathrm{HCl}$ gives major product, which on treatment with an excess of $NaNO_2 / HCl$ at $0^{\circ} C$ provides $P$ as the product. $P$, upon treatment with excess of $H_2 O$ at room temperature, gives the product $Q$. Bromination of $Q$ in aqueous medium furnishes the product $R$. The compound $P$ upon treatment with an excess of phenol under basic conditions gives the product $S$.
→The molar mass difference between compounds $Q$ and $R$ is $474 \mathrm{~mol}^{-1}$ and between compounds $P$ and $S$ is $172.5 \mathrm{~g} \mathrm{~mol}^{-1}$.
($1$)The number of heteroatoms present in one molecule of $R$ is. . . . . .
[Use: Molar mass (in g mol ${ }^{-1}$ ): $\mathrm{H}=1, \mathrm{C}=12, \mathrm{~N}=14, \mathrm{O}=16, \mathrm{Br}=80, \mathrm{Cl}=35.5$
Atoms other than $\mathrm{C}$ and $\mathrm{H}$ are considered as heteroatoms]
($2$)The total number of carbon atoms and heteroatoms present in one molecule of $S$. . . . . .
[Use: Molar mass in $\mathrm{g} \mathrm{mol}^{-1}$ ]: $\mathrm{H}=1, \mathrm{C}=12, \mathrm{~N}=14, \mathrm{O}=16, \mathrm{Br}=80, \mathrm{Cl}=35.5$
Atoms other than $\mathrm{C}$ and $\mathrm{H}$ are considered as heteroatoms
Give the answer quetion ($1$) and ($2$)
Which of the following is a molecular property?
Product $(A)$ is :
→Which one of following compound is most reactive towards $SN^1$ reaction
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In infinite dilutions, the equivalent conductances of $B{a^{2 + }}$ and $C{l^ - }$ are $127$ and $76$ $oh{m^{ - 1}}c{m^{ - 1}}$ $eqv{t^{ - 1}}$. The equivalent conductivity of $BaC{l_2}$at indefinite dilution is
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