What aldehydes and primary alcohols might be oxidized to yield the following carboxylic acids:

1)p-methylhexanoic acid
2)pentanoic acid

#2.

RCH2OH + KMnO4 ==> RCOOH
RCHO + KMnO4 ==> RCOOH

CH3CH2CH2CH2CH2OH and
CH3CH2CH2CH2CHO

I don't know what p-methyl hexanoic acid is. The only p I know of is para and this is not an aryl acid.