Question # 1

Decomposition of H2O is

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Endothermic reaction

Nuclear reaction

Exothermic reaction

Zero nuclear reaction

The steroids of fungi and yeast are called:

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Vitamin D

Vitamin D₂

Ergosterol

Cholesterol

Which of the following compounds does not exhibit positional isomerism?

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Alkynes

Nitroalkanes

Carboxylic acid

Alcohol

Amino acid α-hydroxy carboxylic acid and

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CO₂ gas

H₂ gas

N₂ gas

NH₃ gas

The relative rate of diffusion of a gas (molecular weight = 128) as compared to oxygen is

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2 times

1/4

1/8

1/2

2-propanol on oxidation yield

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Propionaldehyde

Propanone

Propanal

Butanal

Which of the following alcohol cannot be produced by treatment of aldehydes or ketones with NaBH4

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I-propanol

2-Methyl-2-propanol

2-propanol

Ethanol

In addition to many pollutants present in ground water, a successful study was conducted to remove a highly Toxic chemical.What chemical is this

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Cobalt

Nickel

Arsenic

Sulphur

Which of the following protein is used to make buttons

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Gelatin

Callogen

Albumin

Casein

BOD means

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Boron oxygen deuterium

Biochemical oxygen demand

Biochemical oxygen dissolved

Biochemical oxygen death

Substances that tend to decrease the activity of enzymes are called:

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coenzymes

activators

inhibitors

apoenzyme

Aldol condensation is actually

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Electrophilic addition of carbonation

Electrophilic addition of carbonium ion

Nucleophilic addition of carbonation

Nuclephilic addition of carbonium ion

By simply reacting Grignand's reagent with water we get

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An alkane

Higher alkane

An alkene

An alkyne

Kolb's method is not useful for the production of

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Methane

Ethane

Propane

Butane

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

Marsh gas was the name given to

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Methane

Ethane

Propane

Butane

The experimental relationship between a reaction rate and the concentration of reactants is known as

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Order

Molecularity

Rate constant

Rate law

Natural rubber is a polymer of

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Butadiene

Ethyne

Styrene

Isoprene

Homogenous catalysis is that in which catalyst and reactants are in same phase. Which one of the following reaction is a homogenous catalysis

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Which metal is used for catalytic hydrogenation of oils

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Cu

Pt

Ni

Pd

The comparative rates at which the solutes move in paper chromatography, depend on:

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the size of per sued.

R_f values of solutes

temperature of the experiment

size of the chromatography tank used.

Ethylene combines with water in the presence of H₂SO₄+ HgSO₄and forms

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Ethyle chloride

Ethyle alcohol

Carboxylic acid

None of these

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