Question # 1

Monosaccharides are

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Aldoses

Ketoses

Either a and b

None of these

The fibre which is made form acrylonitrile as monomer

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PVC

Rayon fibre

Acrylic fibre

Polyester fibre

In fructose the possible optical isomers are

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12

8

16

4

A fibre which is made from acrylonitrile as monomer

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PVC

Rayon fibre

Acrylic fibre

Polyester fibre

Denaturation of protein means the structure of protein is disrupted, indicate which factor foes not denature protein

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Heating protein

pH changes

Oxidising agent

Keeping pH 7.35

Which carbohydrates is an essential constituent of plant cells?

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Starch

Cellulose

Sucrose

Vitamins

Enzymes, in the living systems

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Provide energy

Provide immunity

Transport oxygen

Catalyze biochemical processes

Hydrolysis of sucrose is called

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Inhibition

Saponification

Inversion

Hydration

Ascorbic acid is a chemical name of

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Vitamin D

Vitamin A

Vitamin C

Vitamin B₆

Which of the following enzymes brings about the hydrolysis of fats?

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Urease

Maltase

Zymase

Lypase

Which is a protein?

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Nylon

Rayon

Natural silk

Terylene

Which has maximum protein content?

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Ground nut

Cow milk

Egg

Wheat

Bakelite is a product formed form

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Reaction of formaldehyde with phenol

Reaction of polyethylene with phenol

Reaction of polypropylene with acid

It is a natural product

A polymeric substance that is formed in the liquid state and then hardened to a rigid solid is called a:

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Fiber

Plastic

Vanish

Polyamide resin

The monomeric units of starch is/are

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Glucose

Fructose

Glucose and fructose

Mannose

The product of addition polymerization reaction is

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PVC

Nylon

Terylene

Polyamide

Which of the following polymers is used for weather resistant paints

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Arcylic resins

Polyvinyl acetate

Polystyrene

PVC

The polymers which can be re-softened again and again are caled

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Thermoplastic

Thermosetting

Both a and b

None

One of the followings is not type of polymer

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Homopolymer

Copolymer

Heteropolymer

Terpolymer

Enzymes are chemically

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Carbohydrates

Proteins

Fatty acids

Phospholipids

Vitamin A is present in

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Liver

Milk

Green vegetables

All

Copolymer is

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Nylon-6

Nylon 66

PMMA

Polyethene

For every reaction occurring in the body three is at least one type of

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Enzyme

Vitamin

Protein

Amino acid

Which of these polymers is an addition polymer

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Nylon 6,6

Polystyrene

Terylene

Epoxy resin

The stroids of fungi and yeast and yeast are called:

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Vitamin D

Vitamin D₂

Ergostrol

Cholestrol

Which of the following has ester linkage?

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Nylon

Bakelite

Terylene

PVC

Which is not an enzyme

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Transverses

Lipase

Lyase

None of these

Which of the following fibres are made of polyamides?

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Dacron

Orlon

Nylon

Rayon

Which of these polymers is a synthetic polymer?

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Animal fat

Starch

Cellulose

Polyester

Which is the polymer that has amide linkage in its structure

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PVC

Poly ethene

Polyester

Nylon

Purines include

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Adenine

Guanine

Both a and b

None

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