Question # 1

In public urinals, we observe some nascent smell. This smell is due to

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Hydrolysis of urea of urine by urease of atmosphere into NH₃and CO₂

Formation of sulphonic acid by urea of urine

Reaction of CO₂of atmosphere with urea monoitrate in urine

Hydrogen present in air reacts with nitrogen forming NH₃

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It decolourises aqueous bromine rapidly

It is insoluble in water

It reduces Fehling's reagent

Two molecules react with each other in the presence of a strong acid

Pro stand for

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Valine

Alamine

Glycine

Proline

Which of the following derivative cannot be prepared directly from acetic acid?

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Acetamide

Acetyl chloride

Ethyl acetate

Acetic acid

The human body can synthesize ______ amino acids

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1

10

20

19

Acetamide and NaOBr/OH^-produce

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Ethanamine

Methanamide

CH₃CN

NH₃

Vinegar is dilute solution of:

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Acitic acid

Formic acid

Butyric acid

Propionic acid

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

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Metamerism

Tautomerism

Enatiomerism

Geometrical isomerism

Glutamic acid, aspartic acid are ______ amino acid

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Acidic

Basic

Neutral

None of these

Which of the following is not a fatty acid

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Propanoic acid

Acetic acid

Phthalic acid

Butanoic acid

Etherification is catalyzed by

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Acids

Gases

Salts

None of the these

Reaction of acids with alcohols is also known as

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Esterification

Saponification

Alkalization

None

An organic acdi having molecular formula C₂H₄O₂is

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Formic acid

Acetic acid

Oxalic acid

Propionic acid

Which of the following reagents is used to distinguish between methanoic acid and ethanoic acid?

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Amm. silver nitrate solution

Neutral ferric chloride

Sodium hydroxide solution

Sodium carbonate solution

A carboxylic acid with one caboxyl group:

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Monocarboxylic acid

Dicarboxylic acid

Tricarboxylic acid

Polycarboxylic acid

Formic Acid is obtained from Red out by:

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Distillation

Crystallization

Filtration

sublimation

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Alkyl

Alkyl nitrile

Cyanogens

Amine

Acetic acid is miscible in:

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Water

Alcohol

Either

All of these

Between CH₃COOH and HCOOH, HCOOH will be

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Less acidic

Equally acidic

More acidic

None

When a carboxylic acid reacts with alcohol, it produces a new class of compounds

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Ethers

Esters

Anhydride

Amides

Which acid is used in the manufacture of synthetic fibre

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Formic acid

Phthalic acid

Carbonic acid

Acetic acid

Monocarboxylic acids exist as dimer because of

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Dipole-dipole attraction

Hydrogen bonding

Van der Waals forces

Conhesive forces

The general formula of amino acids is

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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

Aliphatic carboxylic acids have carboxyl group attached to:

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Alkyl group

Aryl group

Phenyl group

Benzyl lgroup

From the following values of dissociation constants of four acids which value represents the strongest acid?

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2 x 10^-2

0.02 x 10^-1

3 x 10^-4

2 x 10^-4

Carboxylic acids functional group is:

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----COOH

-----COH

----CO---

----OH

Sulphonation of benzoic acid produces mainly

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o-Sulphobenzoic acid

m-sulohobenzoic acid

p-Sulphobenzoic acid

o-and p-Sulphobenzoic acid

Boiling point of acetic acid is°C:

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116

117

118

119

Toluene can be oxidized to benzoic acid by

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KMnO₄(alk)

K₂Cr₂O₇(acidic)

Both

None

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