Question

Among the following compounds, the one having the lowest boiling point is

• A. SnCl$_4$
• B. GeCl$_4$
• C. SiCl$_4$
• D. CCl$_4$

Hint:

Boiling points are influenced by the size of the molecule and the intermolecular forces. Larger molecules with stronger dispersion forces generally have higher boiling points.

Answer 1

The Correct Option is C

Step 1: Understanding boiling points.
The boiling point of a compound is influenced by the molecular size and the type of intermolecular forces present. Generally, larger molecules with more electrons and stronger London dispersion forces have higher boiling points.
Step 2: Analyzing the compounds.
CCl$_4$ is the smallest among the listed compounds, and thus has the lowest boiling point. SiCl$_4$, GeCl$_4$, and SnCl$_4$ are larger molecules and experience stronger intermolecular forces, resulting in higher boiling points.
Step 3: Conclusion.
Thus, the compound with the lowest boiling point is CCl$_4$, corresponding to option (D).