iran-konkur 2020 Q208

iran-konkur · Other · konkur-riazi_1399_specialized_old-curriculum Not Maths
208 -- Which statement is correct?
  1. The bond angles between atoms in the molecules $\text{BCl}_3$ and $\text{SO}_3$ are equal.
  2. The geometric shape of the anion and cation in ammonium chlorate is the same.
  3. The number of electronic lone pairs around the central atom of $\text{ClF}_4^-$ and the molecule $\text{SF}_4$ are equal.
  4. The molecules $\text{SOCl}_2$ and $\text{COCl}_2$ are both polar and their geometric shapes are the same.
\textbf{208 -- Which statement is correct?}

\begin{enumerate}
\item The bond angles between atoms in the molecules $\text{BCl}_3$ and $\text{SO}_3$ are equal.
\item The geometric shape of the anion and cation in ammonium chlorate is the same.
\item The number of electronic lone pairs around the central atom of $\text{ClF}_4^-$ and the molecule $\text{SF}_4$ are equal.
\item The molecules $\text{SOCl}_2$ and $\text{COCl}_2$ are both polar and their geometric shapes are the same.
\end{enumerate}