iran-konkur 2022 Q211

iran-konkur · Other · konkur-riazi_1401_specialized Not Maths
211. Regarding a non-ionic detergent, how many of the following statements are correct?
$$(\mathrm{H=1,\ C=12,\ O=16,\ Na=23,\ S=32\ :\ g.mol^{-1}})$$
  • All its atoms are connected to each other by covalent bonds.
  • In industry, it is produced from complex petrochemical materials.
  • The oxidation number of the sulfur atom in it equals the oxidation number of the sulfur atom in hydrogen sulfide.
  • It is traditionally produced in the city of Maragheh and is suitable for oily hair.
  • If an alkyl group attached to the benzene ring has 10 carbon atoms, its molar mass would be 322 g/mol.

(1) two (2) three (3) four (4) five
\textbf{211.} Regarding a non-ionic detergent, how many of the following statements are correct?

$$(\mathrm{H=1,\ C=12,\ O=16,\ Na=23,\ S=32\ :\ g.mol^{-1}})$$

\begin{itemize}
    \item All its atoms are connected to each other by covalent bonds.
    \item In industry, it is produced from complex petrochemical materials.
    \item The oxidation number of the sulfur atom in it equals the oxidation number of the sulfur atom in hydrogen sulfide.
    \item It is traditionally produced in the city of Maragheh and is suitable for oily hair.
    \item If an alkyl group attached to the benzene ring has 10 carbon atoms, its molar mass would be 322 g/mol.
\end{itemize}

(1) two \quad (2) three \quad (3) four \quad (4) five