Question # 1

In the presence of Aluminium ethoxide, aldehydes get converted into esters. The reaction is known as

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Schmidt reaction

Aldol condensation

Beckmann's rearrangement reaction

Tischenko reaction

Glacial Acetic acid is

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Pure acetic acid at 100°C

Acetic acid mixed with methanol

Pure acetic acid at 0°C

Pure acetic acid above 16.6°C

Amino acids are buildng blocks of:

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protein

Carbohydrates

Lipids

fats

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Carboxylic acids having carboxyl group one is called:

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Mono carboxylic acid

Di-carboboxylic acid

Tri carboxilic acid

Tetra carboxylic acid

Which of the following is not a fatty acid?

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Propanoic acid

Acetic acid

Phthalic acid

Butanoic acid

Which of the following does give violet colour with neutral ferric chloride?

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Acetic acid

Salicaylic acid

Formine acid

Benzoic acid

Common names of carboxylic acids are given by then:

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Source

Person discovered

place

habit

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Hydrolysis of alkyl nitriles is done to get carboxylic acids in the presence of

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Mineral acids

Mineral alkalies

Organics acids

Minerals acids & alkalies

Carboxylic acids are more acidic than pehnol and alcohol because of

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Intermolecular hydrogen bonding

Formation of dimmers

Highly acidic hydrogen

Resonance stabilization of their conjugate base

Which are used as essences(flowers)?

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aldehydes

Ketones

alcohols

esters

Lower carboxylic acids are soluble in water due to

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Low molecular weight

Hydrogen bonding

Dissociation into ions

Easy hydrolysis

Butyric acid was named from butyrum means:

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Red out

Vinegar

Butter

Milk

Acetic acid is obtained when

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Methyl alcohol is oxidized with potassium permanganate

Calcium acetate is distilled in the presence of calcium formate

Acetaldehyde is oxidized with potassium dichromate and sulphuric acid

Glycerol is heated with sulphuric acid

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RCH(CH₃)CO₂H + CH₃OH

RCH(CH₃)CO₂H + HCO₂H

RCH(CH₃)OH + CO₂

RCH(CH₃)OH + HCO₂H

Saponification of ethyl benzoate with caustic soda

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Benzyl alcohol,ethanoic acid

Sodium benzoate, ethanol

Benzoic acid, sodium ethoxide

Phenol, ethanoic acid

What will happen if LiAIH₄is added to an ester?

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Two units of alcohol are obtained

One unit of alcohol and one unit of acid is obtained

Two units of acids are obtained

None of these

Glutamic acid, aspartic acid are ______ amino acid

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Acidic

Basic

Neutral

None of these

The human body can synthesize ______ amino acids

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1

10

20

19

When acetic acid and ethanol react together an ester is formed which is called

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Ethyl ester

Ethanoic acid

Ethyl acetate

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Step 1 Step 2

HCI HCN

HcN,NaCH H₂SO₄

H₂SO₄ K₂Cr₂O₇/H₂SO₄

KCN HCI

Hydrolysis of alkyl nitriles gives:

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alkane

alkyl halide

alkyl nitride

carboxylic acids

Compounds containing cyanide group (.........C=H) are called:

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Nitrides

Nitrites

Nitriles

Cyanides

Which compound is both chiral and acidic

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ECAT Chemistry Chapter 24 Carboxylic Acid Online Test MCQs With Answers

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