Question # 1

According to Boyle's law, which parameters give a straight line parallel to x-axis, when we plot a graph between:

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V and T

P and V

P and 1/V

P and PV

The mechanism of polymerization involves free radical addition polymerization or condensation polymerization. Choose the correct statement

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Polyester is an addition polymer

Polythene is an addition polymer

Polyvinyl chloride (PVC) is a condensation polymer

Polystyrene

Van der Waals equation explains the behaviour of

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Real gases

Mixture of gases

Ideal gas

Diatomic gases

Critical temperature of argon's gas is low. the reason is that

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it contains four lone pairs

it is mono atomic gas

it has as smell signed

its polarizability is low

Vegetable oils are:

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Unsaturated fatty acids

Glycerides of unsaturated fatty acids

Essential oils obtained from plants

Ozone is produced in regions:

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tropical

Polor

antaric

equator

If the energy of the activated complex lies close to energy of reactants, it means that reaction is

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Slow

Exothermic

Endothermic

Exothermic and fast

Vegetables oils are

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Unsaturated fatty acids

Glycerides of unsaturated fatty acids

Glycerides of saturated fatty acids

Essential oils obtained from plants

C₆H₁₂O₆is molecular formula of:

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Glucose

Dextrose

Fructose

All of these

In diamond, which hybridization is there?

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sp2

dsp2

sp3

sp

Formula of paltimic acid is:

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C₁₁H₂₂COOH

C₁₃H₂₇COOH

C₁₅H₃₁COOH

C₁₇H₃₅COOH

During the manufacturing process of cement the temperature of the decomposition zone goes up to

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600°C

800°C

1000°C

1200°C

A one thousand dm³sample of water contains one gram of iron (iii) ions what is the concentration in parts per million of Fe^3f(eq) in parts per million

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0.001

0.01

0.1

1.0

Acid rain is caused when various atmospheric gases dissolve in rain water. What are the gases that cause rain water

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SO₂

NO₂

CO

A and b only

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Hear of reaction

Heat of formation

Heat of neutralization

Heat of combustion

Photons of yellow colour are ______ energetic than violet colour

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More

Less

Equal

None

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A primary alcohol

A secondary alcohol

An eher

A phenol

Which of the following is a method of converting a unsaturated ketone into unsaturated hydrocarbon?

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Aldol condensation

Reimer Tiemann reaction

Cannizaaor's reaction

Wolf-kishner reduction

If 18 g glucose (C₆H₁₂C₆) is present in 1000 g of an aqueous of glucose it is said to be

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1 molal

1.1 molal

0.5 molal

0.1 molal

The oxidation state of an element is zero when

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It forms an oxide

It forms hydride

It is in free state

Only for noble gases

f-Block elements are also called

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Non typical transition elements

Outer transition elements

Normal transition elements

Inner transition elements

Which colour is imparted by sodium

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Yellow

Violet

Red

Crimson

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