Aldehydes Ketones And Carboxylic Acids Practice Quiz - 1 - Class 9 MCQ

Ethanal

Acetaldehyde

Formaldehyde

None of the above

Propan – 1 – ol, butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol, methanol, ethanol

Butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol, methanol, ethanol, propan – 1 – ol,

Methanol, ethanol, propan – 1 – ol, butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol.

Pentan – 1 – ol Methanol, ethanol, propan – 1 – ol, butan – 2 – ol, butan – 1 – ol,

Propene

1 – butene

2 – butene

Ethene

1 – methoxy – 1 – methylethane

2 – methoxy – 2 – methylethane

isopropylmethyl ether

2 – methoxypropane

1 chloro ethane

1, 1, 1 trichloro ethane

1, 2 dichloro ethane

1, 1 dichloro ethane

tertiary alcohols

primary alcohols

secondary alcohols

None of these

SeO₂

K₂Cr₂O₇/H₂SO₄

Iodine/NaOH

Zn – Hg/HCl

4 – nitrobenzenecarbaldehyde and 4 – nitrobenzaldehyde

4 – nitrobenzaldehyde

4 – nitrobenzenecarbaldehyde

None of these

Sodium hydrogensulphite

Hydrogen cyanide

Grignard reagent

None of these

Methoxypropionaldehyde and 2 – Methoxypropanal

2 – Methoxypropanal

Methoxypropionaldehyde

None of these

substitution reaction

electrophilic addition reactions

nucleophilic addition reactions

None of these

Wolff – Kishner reduction

Dow reduction

Cope reduction

Clemmensen reduction

a beta – hydroxy aldehyde or a beta – hydroxy ketone.

a beta – hydroxy acid

an alpha, beta unsaturated ester

.an alpha – hydroxy aldehyde or ketone.

sp² – hybridised

forms three sigma (σ) bonds

forms a π – bond with oxygen

All of these

Etard reaction.

Friedel – Crafts reaction

Gatterman – Koch reaction

Stephen reaction

Veleraldehyde

Acrolein

Phthaldehyde

None of these

sodium benzoate and methyl alcohol

benzyl alcohol and methyl alcohol

benzyl alcohol and sodium formate

sodium benzoate and sodium formate

ketone

a mixture of both aldehyde and ketone

aldehyde

All of these

2, 3 – Hexanedione

2, 5 – Hexanedione

3 – Hexanone

2, 4 – Hexanedione

Aldehydes

Carboxylic acids

Ketones

None of these

H₂ and Pt as catalyst

Zn – Hg with HCl

Glycol with KOH

LiAlH₄

electrophilic attack by OH^– , transfer of H⁺ and transfer of H^–

transfer of H⁺, nucleophilic attack and transfer of H^–

nucleophilic attack, transfer of H^– and transfer of H⁺

None of the above

Gatterman – Koch reaction

Etard reaction.

Stephen reaction

Friedel – Crafts reaction

Chromic oxide

Carbon monoxide and hydrogen chloride

Chlorine

Chromyl chloride