Question # 1

The fibre which is made form acrylonitrile as monomer

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PVC

Rayon fibre

Acrylic fibre

Polyester fibre

Oxidation reduction is done by

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Oxidoreductase

Lipases

Lyase

None of these

The substance upon which an enzyme acts is known as its

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Domain

Field

Substrate

Reactant

In which of these processes are smell organic molecules made into macromolecules?

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The cracking of petroleum fractions

The fractional distillation of crude oil

The polymerization of ethane

The hydrolysis of proteins

Plastics are a 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

Plastics are a 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

Which is the polymer that has amide linkage in its structure

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PVC

Poly ethene

Polyester

Nylon

Enzymes, in the living systems

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Provide energy

Provide immunity

Transport oxygen

Catalyze biochemical processes

The reaction between fat and NaOH is called:

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Esterification

Hydrogenolysis

Fermentation

Sponification

The number of amino acids found in proteins that a human body can synthesize is

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20

10

5

14

The simplest separating unit of a polymer is called:

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Monomer

Dimer

Trimmer

Macromer

Hydrolysis of sucrose is called

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Inhibition

Saponification

Inversion

Hydration

Which one of the following elements is not present in all proteins

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Carbon

Hydrogen

Nitrogen

Sulphur

Nylon, 6,6 is a condensation polymer of

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Adipic acid and glycol

Phthalic acid and glycol

Adipic acid and hexaethylene diamine

Pthalic acid and hexaethylene diamine

Cotton is ______% cellulose

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90

100

99

30

Glyptal polymer is obtained from glycerol on reacting with

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Malonic acid

Phthalic acid

Maleic acid

Acetic acid

(CH₂O)_nis general formula for

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Monosaccharides

Oiligosaccharides

Polysaccharides

None of these

Copolymer is

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Nylon-6

Nylon 66

PMMA

Polyethene

Which of the following is not present in RNA?

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Uracil

Thymine

Ribose

Phosphate

Among the following polymers, the strongest molecular forces are present in

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Elastomers

Fibres

Thermoplactics

Thermosetting polymers

Which of the following polymers is used for weather resistant paints

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Arcylic resins

Polyvinyl acetate

Polystyrene

PVC

Which of the following is a constituent of nylon?

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Adipic acid

Styrene

Teflon

None of these

Which of the following is a biodegradable polymer?

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Cellulose

Polyethene

Polyvinyl chloride

Nylon-6

Which one of the following is a water soluble vitamin

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D

K

A

Ascorbic acid (Vic C)

Vitamin A is present in

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Liver

Milk

Green vegetables

All

The digestion of fats in the intestines is aided by

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Diffusion

Protection

Peptization

Emulsification

Which one of the following is not an example of chain growth polymer?

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Neoprene

Bunna-S

PMMA

Glyptal

DNA is a polynucleic acid. The monomer is known as a nucleotide. What is not the component of the nucleoptide

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Phosphate group

Deoxy ribose sugar

Uracil base

Adenine base

The temp. and pressure used for PVC polymerization is

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10°C and 10 atm

20°C and 20 atm

52°C and 9 atm

100°C and 10 atm

Which one is a polymer compound?

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SO₂

CO₂

CH₄

PVC

Which is a protein?

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Nylon

Rayon

Natural silk

Terylene

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