Question

for each pair of compounds listed, check the box next to the one with the higher boiling point. compounds higher boiling point geh4 ○ gecl4 ○ ch4 ○ cf4 ○ ch3(ch2)3ch3 ○ ch3(ch2)4ch3 ○

Explanation:

Step1: Consider molar - mass and intermolecular forces

Larger molar - mass leads to stronger London dispersion forces. For $GeH_4$ and $GeCl_4$, $GeCl_4$ has a larger molar - mass.

Step2: Compare $CH_4$ and $CF_4$

$CF_4$ has a larger molar - mass than $CH_4$, so it has stronger London dispersion forces.

Step3: Analyze the length of carbon - chain

Longer carbon - chain in alkanes leads to higher boiling points. $CH_3(CH_2)_4CH_3$ has a longer carbon - chain than $CH_3(CH_2)_3CH_3$.

Answer:

$GeCl_4$; $CF_4$; $CH_3(CH_2)_4CH_3$