MCQ
The step shown below is a recent synthesis of corannulene.
Product $(A)$ is
- ✓
- B
- C
- D
✓
Answer
Correct option: A.
a
$(a)\, Pd/C$ (or) $Se$ is used to aromatize the acyclic ring.
$(a)\, Pd/C$ (or) $Se$ is used to aromatize the acyclic ring.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Which molecule does not show zero dipole moment
Which of the following elements require least energy for excitation?
Consider the above reaction where $6.1 \,g$ of benzoic acid is used to get $7.8\, g$ of $m$ -bromo benzoic acid. The percentage yield of the product is ....... .
→(Round off to the Nearest integer) [Given : Atomic masses : $C =12.0 \,u , H : 1.0\, u,O : 16.0 \,u , Br =80.0 \,u ]$
A proton and a $Li ^{3+}$ nucleus are accelerated by the same potential. If $\lambda_{L i}$ and $\lambda_{P}$ denote the de Broglie wavelengths of $Li ^{3+}$ and proton respectively, then the value of $\frac{\lambda_{ Li }}{\lambda_{ P }}$ is $x \times 10^{-1}$.The value of $x$ is ............
→(Rounded off to the nearest integer)
(Mass of $Li ^{3+}=8.3$ mass of proton)
The third ionization enthalpy is minimum for
The $IUPAC$ name of $\begin{matrix}
O \\
|| \\
C{{H}_{2}}-CH-C-C{{H}_{2}}-C{{H}_{3}} \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
Br\,\,\,\,\,\,\,\,\,\,\,\,\,\,CON{{H}_{2}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
\end{matrix}$ is
→O \\
|| \\
C{{H}_{2}}-CH-C-C{{H}_{2}}-C{{H}_{3}} \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
Br\,\,\,\,\,\,\,\,\,\,\,\,\,\,CON{{H}_{2}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
\end{matrix}$ is
The number of structural isomers possible from the molecular formula $C_3H_9N$ is
→Which of the following orders of ionic radii is correctly represented ?
The correct stability order for the following carbocation is
Which of the following will favour the reverse reaction in a chemical equilibrium