Question

Which of the following is correct order of boiling point?

• A. ${CCl}_4>{SiCl}_4$
• B. ${SiCl}_4>{CCl}_4$
• C. ${SiCl}_4={CCl}_4$
• D. None of these

Answer 1

Answer: (A)

${CCl}_4>{SiCl}_4$

In $CC{l}_4$ & $SiC{l}_4$, $C$ has small size than $Si$ thus in $CC{l}_4$ molecules cover large contact area which make the intermolecular forces more stronger between them.

Thus, boiling point of $CC{l}_4$ is greater than $SiC{l}_4$.