Question # 1

Relationship between volume of a gas and prevailing conditions of temperature and pressure are called

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Gas laws

Equilibrium laws

Rate laws

None of these

The crystal system are of

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7 types

10 types

5 types

8 types

Glycogen on hydrolysis give

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Glucose

Lactose

Fructose

None

In a group, the atomic radii from top to bottom

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increase

decrease

don't change

show variable trend

4.4 g of CO₂ contains how many litres of CO₂ at STP?

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2.4 litre

2.24 litre

44 litre

22.4 litre

The boiling point of higher alkanes are greater than those of lower alkanes due to reason that

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higher alkanes have greater number of atoms

the polarizabilities of higher alkanes are greater

higher alkanes have greater hydrogen bonding

higher alkanes have zig-zag structures

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

Identify the linear polymer out of following

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Amylose

Amylopectin

Starch

Glycogen

Plastics are pollution problem because many plastics

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Are made from petroleum

Are very inflammable

Burn to produce toxic fumes

Decompose to produce toxic products

The state of matter which exist only within a relatively narrow range of temperature and pressure

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Solid

Gas

Liquid

Plasma

The substance which adversely affects the human health is:

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Ecosystem

Ecosphere

Atmosphere

Pollutant

Reaction of ethylamine with chloroform in alcoholic KOH produces

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CH₃OH

CH₃NC

C₂H₅NC

C₂H₅CN

A white precipitate ofsilver chlorideimmediately formed on additionof :

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Silver nitrate solution to sodium chloride solution.

Silver chloride solution to sodium nitrate solution.

Silver nitrate solution to potassium chloride solution

Silver nitrate solution to hydrogen chloride solution.

The sp²hybird orbitals are oriented in space at one angle

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180°

109.5°

100°

120°

A common industrial solvent is a mixture of propanone; CH₃COCH₃, and pentyl ethanoate CH₃CO₂(CH₂)₄CH₃. Which reagent would have no effect on this solvent

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Na_(s)

NaBH₄

NaOH_(aq)

2,4-dinitrophenylhydrazine reagent

A combination of glucose and fructose is called:

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Sucrose

Table sugar

a and b

Lactose

The number of atoms or molecules whose concentrations determine the rate of the reaction is called

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Molecularity

Order

Rate of reaction

Rate constant

Air pollution is not caused by

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Pollen grains

Hydroelectric power

Industries

Automobiles

In Lucas test teriary alcohol make an oily layer

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Immediately

In 10 mins

On heating

Not

When two hydrogen atoms approach to form a chemical bond

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The repulsive forces dominate the attractive forces

The attractive forces, dominate the repulsive forces

The energy of atoms increases

The two atoms start ionization

Water which his considered to be safe for human consumption is known as

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Distilled water

Contaminated water

Potable water

Rain water

Treatment of a secondary alcohol with a suitable oxidizing agent (K₂Cr₂O₇) results in the formation of

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Ketone

Aidehyde

Ether

Alkyl halide

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