Ketones are prepared by:

1. Clemmensen's reduction

2. Rosenmund's reduction

3. Oppeanauer's oxidation

4. Cannizzaro's reaction

Chlorine does not react with:

(1) methanal 

(2) CH₃CHO

(3) propanone

(4) C₆H₅CHO

Both acetaldehyde and ketone react with:

(1) ammoniacal AgNO₃

(2) rochelle salt

(3) 2,4-dinitro phenylhydrazine

(4) all of the above

Aldehydes are produces in atmosphere by:

(1) oxidation of secondary alcohols

(2) reduction of alkenes

(3) reaction of oxygen atoms with hydrocarbons

(4) reaction of oxygen atoms with O₃

Compound (C) in above reaction is:

(1) $\mathrm{\alpha }$-hydroxy acid

(2) $\mathrm{\alpha }$-amino acid

(3) $\mathrm{\alpha }$-amino alkanol

(4) $\mathrm{\alpha }$-amino $\mathrm{\beta }$-hydroxy acid

Which structural unit is possessed by aldehyde and not ketone?

(1) $\mathrm{\alpha }$-H-atom

(2) H-atom and carbonyl group

(3) OH and carbonyl group

(4) None of the above

A compound A has molecular formula C₂Cl₃OH. It reduces Fehling's solution and on oxidatioin gives a monocarboxylic acid B. A is obtained by action of Cl₂ on ethyl alcohol. A is:

(1) chloral

(2) CHCl₃

(3) CH₃Cl

(4) chloro acetic acid

Carbonyl compounds when treated with sodium bisulphite solution generally a crystalline sodium bisulphite addition product is formed but which of the following carbonyl compound not forms crystalline addition product?

(1) HCHO

(2) CH₃CHO

(3) CH₃COCH₃

(4) C₂H₅COC₂H₅

The reaction; $2 \underset{\mathrm{COOH}}{\overset{\mathrm{COOH}}{| }} \stackrel{{\mathrm{OH}}^{-}}{\to } \underset{{\mathrm{CH}}_2\mathrm{OH}}{\overset{\mathrm{COOH}}{| }} + \underset{\mathrm{COONa}}{\overset{\mathrm{COOH}}{| }}$ is:

(1) crosses Cannizzaro's reaction

(2) intermolecular Cannizzaro's reaction

(3) intramolecular Cannizzaro's reaction

(4) Neither of the above

Which will form two oximes with NH₂OH?

(1) CH₃COCH₃

(2) CH₃CH₂COCH₃

(3) CH₃CH₂COCH₂CH₃

(4)