The order of melting point of ortho, para, meta nitrophenol is

The most suitable method of separation of amixture of ortho and para nitrophenols mixed in the ratio of 1:1 is

Give the decreasing boiling points of ortho para and metadichlorobenzens

The most suitable method of separation of 1 :1 mixture of ortho and para nitrophenols is:

The most suitable method of separation of 1 : 1 mixture of ortho and para - nitrophenols is-