A research scholar returned to the laboratory after the lock down due to Covid-19. He kept acetone, benzaldehyde, acetaldehyde and diethyl ketone in four different bottles. The bottles contained only the label as P, Q, R and S . He forgot which bottle contained which compound. Compounds P and R only underwent iodoform test. Compound R alone gave reddish brown precipitate with Fehling's reagent. Compounds Q and R alone underwent Tollen's test. Compound S did not answer any of the above tests. Identify the compounds P, Q, R and S .

Question

Examsnet · Accepted Answer

Correct Answer is : PPP-acetone; QQQ-benzaldehyde; RRR-acetaldehyde; SSS-diethyl ketone

KEAM 2021 Physics and Chemistry Solved Paper