19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Which of the following test is not used for protein/amino acids–
Which of the following is the test of primary amine?
Which of the following compound Discharge bromine solution to colourless without evolving HBr?
Which of the following is the test of alcohol?
Silver salt method is used to determine molecular weight of
KOH can be used as a drying agent for
Amines are basic. Therefore, do not react with KOH.
Phenols contains acidic H it reacts with KOH.
Acids reacts with KOH to form salt.
Esters undergo hydrolysis in Presence of KOH
Which of the following observations is correct and is used in the identification of carboxylic acids?
An organic compound is heated with HNO2 at 0oC 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.
Barfoed test is used for the distinguish:
Seliwanoff’s test is used for the distinguish:
Which of the following test can use for separation of alcohol and phenol?
Phenol and benzoic acid can be separated by
Among the following which compound gives precipitate with AgNO3 solution? (a) (b) (c)
Which of the following compounds will answer Lassaigne’s test for nitrogen
Which of following will give Lassaigne’s test for nitrogen
The oxygen is estimated in the organic compound by
In Lassaigne’s test when both N and S are present, blood red colour obtained is due to the formation of–
Kjeldahl’s method is used in the estimation of–
Dumas method involves the determination of nitrogen content in the organic compound in form of–
Which of the following statements is wrong?
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)