Give a simple test to distinguish between the compounds in each of the – InterviewSolution

InterviewSolution

1.	Give a simple test to distinguish between the compounds in each of the following paris.
Answer» a. and b. The aldehyde gives a position Tollens test (Ag mirror). Also in (a), only aldehyde given a precipitate with `H_(2)NOH` or `PhNHNH_(2)`. c. Only alcohol is oxidised by `CrO_(3)` (colour changes from orange red to green), alternatively, ketone gives a solid oxime or phenyl hydrazone with `H_(2)NOH` or `PhNHNH_(2)`. d. Only the aldehyde gives a positive Tollens test, ketone gives a positive iodoform test `("precipitate of" CHI_(3))`

Discussion

No Comment Found

Related InterviewSolutions

Arrange the following compounds in increasing order of their acid strength: Propane-1-ol, 2, 4, 6-trinitrophenol, 3-nitrophenol, 3,5-dinitrophenol , phenol, 4-methylphenol.
State the equations for the preparation of the following compounds . (Equations need not to be balance). (i) Chlorobenzene from aniline (in two steps ) (ii) N-Propyl amine from ethyl chloride (in two steps )
The ratio of molecular mass to empirical formula mass for glucose isA. 2B. 4C. 6D. 8
Write the structures for the Ethoxybutane compounds.
Write the structures for the Ethoxyethane compounds.
Give the major products that are formed by heating of the `CH_(3)-CH_(2)-CH_(2)-O-underset(CH_(3))underset(|)overset(CH_(3))overset(|)C-CH_(2)-CH_(3)` ethers with HI.
Identify the reactant needed to form t-butylalcohol from acetone.
Give the major products that are formed by heating of the `CH_(3)-CH_(2)-overset(CH_(3))overset(|)CH-CH_(2)-O-CH_(2)-CH_(3)` ethers with HI.
Suggest a suitable oxidising reagent for the following conversions: A. a.`MnO_(2)` in `(A)` and `CrO_(3)` (in glacial acetic acid) in `(B)`.B. b.`CrO_(3)` in (A) and `MnO_(2)` in `(B)`.C. c.Both are correctD. d.Both are incorrect
The following is not an appropriate reaction for the preparation of t-butyl ethyl ether. `C_(2)H_(5)O"Na"+CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)C-Cl to CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)C-OC_(2)H_(5)` Write a suitable reaction for the preparation of t-butylethyl ether.