Question # 1

Correct order of intermolecular forces

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Gas < liquid < solid

Liquid < gas < solid

Gas < liquid < solid

Gas = liquid = solid

Water may boil at 170C when external pressure is

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760 torr

170 torr

2115 torr

700 torr

Which of the following gases shows more ideal behaviour at 0°C

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H₂

CH₄

He

NH₃

The relative rates of diffusion of a gas (Mol.wt.=98) as compared to hydrogen will be

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1/7

1/5

1/4

1

Carboxylic acids can be prepared from:

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Oxidation of alkane

Oxidation of alcohols

Oxidation of aldehydes

All of these

Glucose and fructose are isomers

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Chain isomers

Position isomers

Functional group isomers

Metamers

When two ice cubes are pressed together they unite to form one cube. Which of the following forces is responsibles for holding them together

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Van der Waal's

covalent bonding

hydrogen bonding

dipole-dipole interaction

Which of the following equations represents the 2nd ionization energy of Na?

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Na(g) ---> Na²⁺ (g) + 2e^-

Na(s) ---> Na²⁺ (g) + 2e^-

Na⁺(s) ---> Na²⁺ (g) + e^-

Na⁺(g) ---> Na²⁺ (g) + e^-

Phenol is colourless, crystalline and solid

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Hygroscopie

Deliquescent

Moistening

Odourless

What will be the pH of 1.0 mol dm-3 of NH4OH, which is 1% dissociated

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2

12

0

2.7

Macromolecules or polymers are large molecules built up from small m0lecules known as monomers.This hypothesis put forward by:

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Newton

schrodinger

Lewis

Stadinger

The monomeric units of starch is/are

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Glucose

Fructose

Glucose and fructose

Mannose

Orbital having same energy is called:

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Hybrid orbital.

Valence orbital.

Degenerate orbital.

D-orbital.

Palmitic acid & steanic acid ae obtained from process of fats & oils:

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Reduction

Neutralization

oxidation

hydrolysis

Phenol is a weak acid. The correct order of acid strength of carboxylic acid, phenol and alcohol is

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Carboxylic acid > phenol > alcohol

Carboxylic acid > alcohol > phenol

Phenol > carboxylic acid > alcohol

Alcohol > phenol > carboxylic acid

Hydrogenation of bezoyl chloride in presence of Pd on BaSO₄gives

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Benzyl alcohol

Benzaldehyde

Benzoic acid

Phenol

Toluene can be oxidized to benzoic acid by

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KMnO₄(alk)

K₂Cr₂O₇(acidic)

Both

None

Which is not a calcareous material

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Lime

Clay

Marble

Marine shell

What is the cause of water pollution

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Chemical and bacterial contents in live stock

The spilled oil in rivers and ponds

Wide spread use of pesticides

All of the above

By the use of catalysis the energy of activation is

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Decreased

Increased

Not affected

None

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

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Order or reaction

Rate law

Activated complex

Molecularity

Which of the following compounds on boiling with KMnO₄(alk) and subsequent acidification will not give benzoic acid?

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Benzyl alcohol

Acetophenone

Anisole

Toluene

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