Catalytic dehydrogenation of a primary alcohol gives a

• secondary alcohol

• aldehyde

• ketone

• ester

The product formed when hydroxylamine condenses with a carbonyl compound is called

• hydrazide

• oxime

• hydrazine

• hydrazone

The compound on dehydrogenation gives a ketone. The original compound is

• primary alcohol 

• secondary alcohol

• tertiary alcohol

• carboxylic acid

294.

Which of the following organic compounds answers to both iodoform test and Fehling's test?

• Ethanol

• Methanal

• Ethanal

• Propanone

CH₃COOH $\stackrel{{\mathrm{LiAlH}}_4}{\to } \mathrm{X} \underset{300°\mathrm{C}}{\overset{\mathrm{Cu}}{\to }} \mathrm{Y} \underset{\mathrm{NaOH}}{\overset{\mathrm{Dilute}}{\to }}$ Z

In the above reaction Z is

• Butanol

• Aldol

• Ketol

• Acetal

The compound which forms acetaldehyde when heated with dilute NaOH, is

• 1, 1-dichloroethane

• 1, 1, 1-trichloroethane

• 1-chloroethane

• 1, 2-dichloroethane

The compound obtained when acetaldehyde reacts with dilute aqueous sodium hydroxide exhibits

• geometrical isomerism

• optical isomerism

• neither optical nor geometrical isomerism

• both optical and geometrical isomerism

Benzaldehyde and acetone can be best distinguished using

• Fehling's solution

• Sodium hydroxide solution

• 2, 4-DNP

• Tollen's reagent

One mole of an organic compound A with the formula C₃H₈O reacts completely With two moles of HI to form X and Y. When Y is boiled with aqueous alkali it forms Z. Z answers the iodoform test. The compound A is

• propan-2-ol

• propan-1-ol

• ethoxyethane

• methoxyethane

The correct sequence ofsteps involved in the mechanism of Cannizaro's reaction is

• nucleophilic attack, transfer of H^- and transfer of H⁺

• transfer of H^-, transfer of H⁺ and nucleophilic attack

• transfer if H⁺, nucleophilic attack and transfer of H^-

• electrophilic attack by OH^-, transfer of H⁺ and transfer of H^-