Jones reagent is:

1. Acidified KMnO₄

2. K₂Cr₂O₇ + H₂SO₄ or chromic acid + H₂SO₄

3. Alkaline K₂Cr₂O₇

4. None of the above

Acetaldehyde undergoes self condensation in presence of aluminium ethoxide to give ethyl acetate. This reaction is called:

(1) Perkin reaction

(2) Tischenko's reaction

(3) Cannizzaro's reaction

(4) Aldol condensation

Oppenauer oxidation is the reverse process of:

(1) Wolff-Kishner's reduction

(2) Rosenmund's reduction

(3) Clemmensen's reduction

(4) Meerwein-Ponndorf Verley reduction

Semicarbazide is:

(1) NH₂CONH₂

(2) NH₂-NH₂

(3) NH₂CONHNH₂

(4) None of these

An aldehyde which undergoes Cannizzaro's reaction and reduces Schiff's reagent but does not reduce Fehling's solution is:

(1) CH₃CHO

(2) HCHO

(3) C₆H₅CHO

(4) salicylaldehyde

b-hydroxy butyraldehyde is an example of: 

(1) aldol

(2) diol

(3) hemiacetal

(4) acetal

A ketone reacted with C₂H₅MgBr reagent followed by hydrolysis gave a product which on dehydration gives an alken. The alkene on ozonolysis gave diethyl ketone and acetaldehyde. The ketone is:

(1) dimethyl ketone

(2) ethyl methyl ketone

(3) diethyl ketone

(4) ethyl propyl ketone

The reaction  produces:

1. 

2. 

3. 

4. 

Treatement of propionaldehyde with dil. NaOH gives:

(1) ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{COOCH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_3$

(2) ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CHOHCH}}_2{\mathrm{CH}}_2\mathrm{CHO}$

(3) ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{CHOHCH}\left({\mathrm{CH}}_3\right)\mathrm{CHO}$

(4) ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{COCH}}_2{\mathrm{CH}}_2\mathrm{CHO}$

Which of the following will react with water ?

(1) CHCl₃

(2) CCl₃CHO

(3) CCl₄

(4) CH₂Cl.CH₂Cl