Chemistry 9701 · AS & A Level · States of matter

States of matter — practice question

In what sequence do the four chlorides listed have melting points from lowest to highest? $\text{CCl}_4$, $\text{HCl}$, $\text{MgCl}_2$, $\text{PCl}_5$

  • A$\text{CCl}_4 \rightarrow \text{HCl} \rightarrow \text{PCl}_5 \rightarrow \text{MgCl}_2$
  • B$\text{HCl} \rightarrow \text{CCl}_4 \rightarrow \text{PCl}_5 \rightarrow \text{MgCl}_2$
  • C$\text{HCl} \rightarrow \text{PCl}_5 \rightarrow \text{CCl}_4 \rightarrow \text{MgCl}_2$
  • D$\text{MgCl}_2 \rightarrow \text{PCl}_5 \rightarrow \text{CCl}_4 \rightarrow \text{HCl}$

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