Question

I have these answered, but I'd like someone to check them for me? Plz and thanks :)

Rank from most to least soluble in water:
HOOCCH2COOH, HOOC(CH2)5COOH, CH3(CH2)5COOH
I ranked them 2, 1, 3
Which of these are true?
1)Smaller compounds are generally more soluble in water than larger compounds with similar structures
2)Compounds that can form more hydrogen bonds are more soluble in water
3)Larger compounds can form more hydrogen bonds than smaller compounds with similar structures
I chose 1, 2, unsure of 3