Question # 1

The human body can synthesize ______ amino acids

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1

10

20

19

Amino acids are buildng blocks of:

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protein

Carbohydrates

Lipids

fats

Acetamide is prepared by:

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Heating ammonium acetate

Heating methyl cyanide

Heating ethyl acetate

The hydrolysis of methyl cyanide

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

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Ethyl ester

Ethanoic acid

Ethyl acetate

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 statements about acetic, anhydride is not correct

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It is immiscible with water but is hydrolysed to give acetic acid

It is prepared by the action of actyl chloride on the sodium salt of acetic acid

it reacts with ammonia to give acetamide

it is a strong acid

Lysine is ______ amino acid

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Acidic

Basic

Natural

None of these

Between CH₃COOH and HCOOH, HCOOH will be

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Less acidic

Equally acidic

More acidic

None

Boiling point of acetic acid is°C:

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116

117

118

119

Acetic acid is also named.

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Methanoic acid

Ethanoic acid

Propanic acid

Butanoic acid

Lower carboxylic acids are soluble in water due to

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Low molecular weight

Hydrogen bonding

Dissociation into ions

Easy hydrolysis

Acetic acid is miscible in:

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Water

Alcohol

Either

All of these

Which are used as essences (flowers)?

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Aldehydes

Ketones

Alcohols

Esters

Those amino acids which contain two carboxylic groups are called ______ amino acids

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Acidic

Basic

Neutral

None of these

When propanamide reacts with Br₂and NaOH then which of the following compounds is formed?

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Ethyl alcohol

Propyl alcohol

Propyl amine

Ethylamine

The organic compounds containing Ph-OH group are called:

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Phenol

aldehyde

Keton

Carboxylic acids

The reaction of acetaldehyde with HCN followed by hydrolysis gives a product which exhibits

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Metamerism

Tautomerism

Enatiomerism

Geometrical isomerism

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di(4-bormophenyl) method

Methanol

Propan-1-ol

Propan-2-ol

With the increase in carbon no. the solubility of carboxylic acids

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Increases

Decreases

Remains same

None of these

Acetamides are formed by the reaction of carboxylic acids with

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Acids

Bases

Salts

NH₃

Heating a mixture of sodium benzoate and soda lime gives

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Methane

Benzene

Sodium bezoate

Calcium benzoate

Sulphonation of benzoic acid produces mainly

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o-Sulphobenzoic acid

m-sulohobenzoic acid

p-Sulphobenzoic acid

o-and p-Sulphobenzoic acid

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Step 1 Step 2

HCI HCN

HcN,NaCH H₂SO₄

H₂SO₄ K₂Cr₂O₇/H₂SO₄

KCN HCI

Which reagent is used to reduce a carboxylic group to an alcohol?

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H2/Ni

H2/Pt

NaBH4

LiAIH4

General formula of aromatic carboxyl acids

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R---------------OH

RCOOH

RCOR

ARCOOH

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ECAT Chemistry Chapter 24 Carboxylic Acid Online Test MCQs With Answers

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