Question # 1

London forces are

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stronger than dipole-dipole interactions

weaker than dipole-dipole interactions

equal to dipole-dipole interactions

sometimes stronger and sometimes weaker than dipole-dipole interactions

The relationship between volume of a given amount of gas and prevailing conditions of temperature and pressure are:

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Charle's law

Graham's law

Boyle's law

Gas laws

consider the physical properties of the gases. Which of the following statements about particles of gases is incorrect? The particles are:

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causing pressure

having wide spaces

orderly arranged

randomly moving

Which of the following compound is least reactive

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HCHO

CH3CHO

CH3COCH3

C6H5CHO

Glycogen on hydrolysis give

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Glucose

Lactose

Fructose

None

Coordination number of Zn and ZnS (Zinc blends) is

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4

6

2

None of these

Which of the following metal does not liberate hydrogen on reaction with acid?

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Mg

Pt

Zn

Ca

The molecules of CO2, in dry ice form the

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covalent crystals

molecular crystals

none of these crystals

ionic crystals

Most animals can not digest:

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starch

cellulose

proteins

glucose

Simplest Structure of a protein that has only covalent bonding between amino acids is

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2° structure

3°structure

1° structure

4° structure

Which one of the following is an appropriate indication of positive iodoform test?

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Formation of H2O

Brick red precipitate

Release of H2 gas

Yellow precipitate

Gradual addition of electronic shells in the nobel gases causes a decrease in their

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Ionization energy

Atomic radius

Boiling point

Density

The development of disagreeable odur in fats or oil is called

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Fragrance

Perfume

Rancidity

Smell

ΔH is equal to

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E + PV

E + PΔV

ΔE + P

ΔE + PΔV

Hydrocarbons are divided into aliphatic, alicyclic and aromatic which structure among the following show an alicyclic hydrocarbon

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The negatively charged particles are called

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Cation

Radical

Anion

Positron

Ammonium nitrate fertilizers is not used for which crop?

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Cotton

Wheat

Sugar-cane

Paddy rice

Which of the following charge

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Li

Be

H

He

The rate of E₁reaction depends upon:

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The concentration of substrate

The concentration of nucleophile

The concentration of substrate as well as nucleophile

None of these

The branch of chemistry which deals with thermal energy changes in chemical reactions is called

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Chemical kinetic

Thermodynamics

Thermochemistry

Mechanics

The most reactive compound for electrophilic nitration will be

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Benzyl chloride

Benzoic acid

Nitrobenzene

Chlorobenzene

The base used in Cannizzaro's reaction is

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NaOH

KOH

CHI₃

All of these

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