Chemistry Question Bank

Among the following which compound gives precipitate with AgNO₃ solution? (a) (b) (c)

Which of the following statements is wrong?

Phenol and benzoic acid can be separated by

KOH can be used as a drying agent for

Sulphur is estimated by Carius method in the form of

An organic compound is heated with HNO₂ at 0 °C and then the resulting solution is added to a solution -napthol whereby a brilliant red dye is produced. The observations indicate that the compound possesses.

Which of the following test can use for separation of alcohol and phenol?

Barfoed test is used for the distinguish:

Compounds which do not contain halogen but give positive Beilstein test?

How will you separate iodine from sodium chloride?

Which of the following compounds will answer Lassaigne’s test for nitrogen

Which of following will give Lassaigne’s test for nitrogen

Phenols contains acidic H it reacts with KOH.

A mixture of acetone and CCl₄ can be separated by

Which of the following observations is correct and is used in the identification of carboxylic acids?

The molecular mass of a organic compound which contains only one nitrogen atom can be

Azeotropic distillation is used only to seperate azeotropes ie. constant boiling mixture. Here acetone & CCl₄ are not azeotropic mixture. Hence (a) is not correct.

Sublimation is a process in which a solid (KCET 2010)

CCl₄ & acetone differ in their boiling Point. So it can be seperated through fractional distillation. Hence (b) is correct.

Which of the following test is used for quantitative estimation of N

The most suitable method of separation of 1: 1 mixture of ortho and para-nitrophenols is (NEET 2017)

A mixture of benzene and chloroform is separated by–

Paper chromatography is an example of : (NEET 2020)

Which of the following compound is/are purified by sublimation?

In the Lassaigne’s test for the detection of nitrogen in the organic compound, the appearance of blue coloured compound is (West Bengal PMT 2015)