Question 205 of 512

The boiling point of p-nitrophenol is higher than that of o-nitrophenol because                    

(a) NO2 group at p-position behaves in a different way from that at o-position

(b) intramolecular hydrogen bonding exists in p-nitrophenol

(c) there is intermolecular hydrogen bonding in p-nitrophenol

(d)  p-nitrophenol has a higher molecular weight than o-nitrophenol