posted by anonymous .
Are the words in brackets correct? If not, correct it.
1. Aldehydes and ketones are [less] polar than hydrocarbons.
I think aldehydes and ketones are polar, so should I change it to "more"?
2. [Hydrocarbons] have stronger intermolecular forces than aldehydes and ketones.
I had no ideas about that.
Thanks for helping out.
Your answer to #1 is correct and you should change it to "more". If you think about #1, you should know that #2 is false. Think about it. If aldehydes and ketones are more polar molecules than alkanes, then wouldn't aldehydes and ketones have stronger intermolecular forces.
For #2, should I change "hydrocarbons" to "alcohols"?