Chemistry Question Bank

If N and S both are present in an organic compound during Lassaigne’s test, both will change into

The prussian blue colouration obtained in the test for nitrogen in the organic compound is

Sodium nitrorusside Na2[Fe(CN)5NO] is used as reagent for detection of ______ and the compound formed is ____.

The oxygen is estimated in the organic compound by

Which of following will give Lassaigne’s test for nitrogen

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

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

Phenol and benzoic acid can be separated by

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

Seliwanoff’s test is used for the distinguish:

Barfoed test is used for the distinguish:

Which of the following is the test of alcohol?

Which of the following compound Discharge bromine solution to colourless without evolving HBr?

Which of the following will give Tollen’s test?

Schiff test is used for the identification:

Zeisel’s method is use for the determination of

Which of the following is the test of carbohydrates?

Which of the following is the test of primary amine?

Which of the following test is not used for protein/amino acids–

Column I Column II (compound) (tests) (a) (p) 2,4-DNP test (b) (q) Yellow ppt. with NaOH + I2 (c) O || CH C H (r) Red ppt. with Fehling’s solution (d) (s) Silver mirror with Tollen’s reagent

Column I (reagents) Column II

Column I Column II (pair of compounds) (identification test) (a) and (p) Tollen’s reagent test (b) OH and OH (q) Br2 + H2O test (c) O || H C OH and (r) Lucas test O || CH C OH (d) and (s) Iodoform test (t) Ammonic…

Phenol + Phthalic anhydride Conc.H SO fusion B. -> B gives which of the following colour in alkaline medium?

Paper chromatography is an example of : (NEET 2020)

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