question_answer

Four students of a class, Sonu, Sanjay, Sanjana and Sohan have one cylinder each for performing an experiment. Sonu's cylinder contains Helium gas. Sanjana's cylinder is full of water. Sanjay's cylinder contains equal amounts of sand, sugar and rice mixed properly. Sohan's cylinder is filled with sea water. Whose cylinder contain only element?

A) Sohan

B) Sanjana

C) Sanjay

D) Sonu

E) None of these