Which of the following is/are used as disinfectant of water?

Which one of the following apparatus is used for separating benzene and water mixture ?

Chlorination is a process used for water-purification. The disinfecting action of chlorine is mainly due to

Which of the following process and its material pair is NOT correctly matched?

Refining of petroleum is carried out using which one of the following techniques?

Which one of the following methods can be used to separate anthracene from a mixture of salt and anthracene ?