Which Compound Has Highest Boiling Point?

[TT0]

Homework Statement

Of the following compounds, which has the highest boiling point?

1. (A) CH3—CH3
2. (B) CH3—CH2OH
3. (C) CH3—COOH
4. (D) CH3—COH
5. (E) H2S

Homework Equations

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The Attempt at a Solution

Chose C because is more polar with the 2 oxygens, however, the answer has conflicting answer. It says its E while explaining why its C. Can someone confirm which one is right? Thanks!

 

[Bystander]

You've got it; now "Google" it for confirmation.

 

[TT0]

Ah yes, totally forgot that wikipedia had boiling points, thanks!

 

[Borek]

It says its E

So obviously wrong, H₂S is a gas at STP.