Question # 1

The IUPAC name fo CH₃COCH (CH₃)₂is

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4-Methylisopropyl ketone

3-Methyl-2 butanone

Isopropylmethyl ketone

2 - Methyl- 2 butanone

Give IUPAC name fo Acetone

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Ethanal

Propanone

Butanone

Propanal

Which of the following in incorrect?

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FelCl₃is used in the detection of phenols

Fehling solution is used in the detection of glucose

Tollen's reagent is used in detection of unsaturation

NaHSO₃is used in the detection of carbonyl compounds

Which of the following does not turn Schiff's reagent to pink?

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Formaldehyde

Bezaldehyde

Aceton

Methyl chloride

Which one of the following reagents will distinguish between C₆H₅CHO and C₆H₅COCH₃

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Aqueous bromine

Phosphorus pentachloride

2, 4 DNPH

Tollen's reagent

The product of the reaction between propanone and HCN is hydrolysed under acidic conditions. What is the formula of the final product

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CH₃CH(OH)COOH

CH₃CH₂CH(OH)COOH

(CH₃)₂C(OH)COOH

CH₃CH₂CH₂COOH

Dehydration of allcohol gives:

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Alkane

Alkene

Aldehyde

ketone

Benzophenone can be converted into benzene using

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Fused alkali

Anhydrous AlCl₃

Sodium amalgam in water

Acidfied dichromate

Wolf-kishner reduction is used for the reduction of

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Nitro compounds

Carboxylic acids

Carbonyl compounds

Olefins

Aldehydes can be distinguished from ketones by

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2,4-DNPH test

NaHSO₃test

N₂H₄test

Tollen's test

What is formed when propanone is refluxed with an anhydrous solution of NaBH₄

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Propanal

Propan-1-ol

Propan-2-ol

Propane

An organic compound 'A' has the molecular formula C₃H₆O, it undergoes iodoform test. When saturated with HCl it gives 'B' of molecular formula C₉H₁₄O. A and B, respectively are

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Propanal and mesitylene

Propanone and mesityl oxide

Propanone and 2, 6-dimethyl-2,5-heptadien-4-one

Propanone and mesitylene oxide

Chromyl chloride and toluene react to produce

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p-chlorotoluene

Benzaldehyde

Benzyl chloride

Bezoic acid

Formaldehyde is used to make

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Plastics

Medicine

Antiseptic

All of these

Cyanohydrin of which of the following forms lactic acid

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HCHO

CH₃COCH₃

CH₃CHO

CH₃CH₂CH₂CHO

Which of the following is halo form

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CHBr₃

CHCI₃

CHI₃

All of these

Acetone is prepared by

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Oxidation of n-propyl alcohol

Oxidation of acetaldehyde

Pyrolysis of calcium acetate

Pyrolysis of calcium acetate as well as acetic acid

Reduction of aldehydes with HI and P gives

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Primary alcohols

Secondary alcohols

Alkanes

Tertiary alcohols

Chromic acid used to oxidize

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Aldehyde

Ketone

Both a and b

None of these

Which of the following reagent will react with both aldehyde and ketones?

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Grinard's reagent

Tollen's reagent

Fehling's reagent

Benedict's reagent

Reaction of Grignard's reagent with formaldehyde gives:

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pri-alcohol

sec-alcohol

ter-alcohol

carboxylic

Ketons are prepared by the oxidation of

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Primary alcohol

Secondary alcohol

Tertiary alcohol

None of these

Acetone reacts with HCN to form a cyanohydrin. It is an example of

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Electrophilic addition

Electrophilic substitution

Nucleophilic addition

Nucleophilic substitution

In Tolten's best, the end product is ______ formed

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White ppts

Red ppts

Yellow ppts

Silver mirror

Which of the following is hypnotic?

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Acetaldehyde

Metaldehyde

Paraldehyde

None

The color of ppts formed by Benedirct's test is

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Brick red

Wine red

Yellow

Orange

Which is not true about acetophenone?

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Reacts to form 2,4-dintrophenyl hydrazine

Reacts with Tollen's reagent to form silver mirror

Reacts with I₂/NaOH to form iodoform

On oxidation with alkaline KMnO₄followed by hydrolysis gives benzoic acid

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With H₂/Ni CH₃(CH₂)₅CH₂OH

With H₂/Ni CH₃(CH₂)₅CH₃

With NaBH₄ CH₃(CH₂)₅CH₂OH

With NaBH₄ CH₃(CH₂)₅CHO

Condensation of aldeydes withα-hydrogen gives:

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Acetal

Ketal

Aldol

Cannizzaro product

Which reagent will distinguish a ketone from an aldehyde

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Br₂

2, 4-dinitrophenylhydrazine

NaBH₄

Tollen's reagent

Ketones are prepared by the oxidation of

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Primary alcohol

Secondary alcohol

Tertiary alcohol

None of these

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ECAT Chemistry Chapter 23 Aldehydes and Ketones Online Test MCQs With Answers

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