[orgoclear]

How do you consider the basicity of the following anilines

The rest is obvious .. I just have doubts in p-methyl aniline and p-ethyl aniline

Ethyl is more electron releasing than methyl. So, should'nt p-ethyl one be more basic.. The answer is given exactly the opposite

I assume that it is due to the fact that -CH3 has more Hyperconjugative Hydrogen. But as a whole -C2H5 is more electron releasing or am i wrong

[stewie griffin]

To be honest I don't think I could of predicted either way with regard to the methyl and ethyl compounds. 

[movies]

I think the ethyl one should be more basic for exactly the reason you said.  I doubt the difference is very large though.  Where did you see an answer that contradicts that?

[orgoclear]

Where did you see an answer that contradicts that?

It was a question in one of the B.Tech entrance exams here. and the answer provided was that p-methylaniline was most basic.

Although I have searched on the web a bit which seems to indicate that I was right,
pKa of p-methylaniline = 4.85
pKa of p-ethylaniline = 5.03

I doubt the difference is very large though.

It is not too large I guess