iran-konkur 2023 Q94

iran-konkur · Other · konkur-riazi_1402_tir_specialized Not Maths
94. Regarding the compound with the structure shown below, which of the following is correct?
[Figure: A bicyclic compound containing a benzimidazole ring fused with a benzene ring, connected via a sulfinyl group ($S=O$) to a side chain containing a pyridine-like ring with methyl substituents and a ketone group ($C=O$)]
A: The number of $\mathbf{C{\equiv}H}$ bonds equals the number of carbon atoms in it.
B: If the nitrogen atoms are replaced by carbon atoms, a structure with three benzene rings is formed.
C: The number of carbon atoms in the molecule, with the number of these atoms in 3 nonane and 6 methyl nonane molecules, is equal.
D: The number of double bonds between atoms equals twice the number of lone pairs on the most electronegative atom in the structure.
  1. ``A'' and ``C''
  2. ``A'' and ``D''
  3. ``B'' and ``C''
  4. ``B'' and ``D'' 
\textbf{94.} Regarding the compound with the structure shown below, which of the following is correct?

\textit{[Figure: A bicyclic compound containing a benzimidazole ring fused with a benzene ring, connected via a sulfinyl group ($S=O$) to a side chain containing a pyridine-like ring with methyl substituents and a ketone group ($C=O$)]}

\textbf{A:} The number of $\mathbf{C{\equiv}H}$ bonds equals the number of carbon atoms in it.

\textbf{B:} If the nitrogen atoms are replaced by carbon atoms, a structure with three benzene rings is formed.

\textbf{C:} The number of carbon atoms in the molecule, with the number of these atoms in 3 nonane and 6 methyl nonane molecules, is equal.

\textbf{D:} The number of double bonds between atoms equals twice the number of lone pairs on the most electronegative atom in the structure.

\begin{enumerate}
\item ``A'' and ``C''
\item ``A'' and ``D''
\item ``B'' and ``C''
\item ``B'' and ``D''
\end{enumerate}
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