Question # 1

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 of the following polymers is used for weather resistant paints

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Arcylic resins

Polyvinyl acetate

Polystyrene

PVC

Glycine at pH7 has the structure

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H₂N -- CH₂-- COOH

H₃N⁺-- CH₂-- COOH

H₂N -- CH₂COO^-

H₃N⁺-- CH₂-- COO^-

Which property is not present in lipids?

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Liquid

Solid or semi solid

Soluble in water

Form emultion

Polysaccharides are also called

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Crystals

Sugars

Liquids

None sugars

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

The clotting time of blood is increased due to the deficiency of

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Vitamin A

Vitamin K

Vitamin D

Vitamin C

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

At what pH glycine shows the structure H_3N⁺-- CH₂-- COOH

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2

7

10

14

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

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Carbon

Hydrogen

Nitrogen

Sulphur

The fibre which is made form acrylonitrile as monomer

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PVC

Rayon fibre

Acrylic fibre

Polyester fibre

Which is the polymer that has amide linkage in its structure

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PVC

Poly ethene

Polyester

Nylon

Which of the following is not a synthetic polymer?

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Polyethylene

PVC

Nylon

Cellophane

Which of the following is a polyamide?

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Nylon

Orlon

Teflon

Terylene

Polyester resins have special use in:

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Clothing

Paints

Emulsion

Floor covering

Poly hydroxyl compounds of aldehyde and ketones are:

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Carbohydrates

Proteins

Fats

Lipids

Which one of the following statements of glucose and sucrose is incorrect?

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Both are soluble in water

Both are naturally occuring

Both are carbohydrates

Both are disaccharides

Which of the following statements is incorrect about vitamins

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Often function as coenzymes

Molecules contain at least one ring structure

Are often synthesized by the body

Are polyfunctional compounds

The reaction between fat and NaOH is called

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Esterification

Hydrogenolysis

Fermentation

Saponification

Which of the following brings about the conversion of starch into maltose

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Maltase

Zymase

Diatase

Invertase

Which one of the following is the most abundant organic substance found in nature

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Fructose

Starch

Glucose

Cellulose

Vegetable oils are

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Unsaturated fatty acids

Glycerides of unsaturated fatty acids

Glyccerides of saturated fatty acids

Essential oils obtained from plants

The main structure features of proteins is

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An ester linkage

An ether linkage

The peptide linkage

All

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

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Urease

Maltase

Zymase

Lypase

Cotton has cellulose in it:

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96%

97%

98%

99%

Sterols, vitamin D and terpenese belong to

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Simple lipids

Complex lipids

Derived lipids

None

Factors affecting denaturation of proteins:

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Change in temp and pH

Strong reducing agent

Strong oxidizing agent

All of these

Which is not an enzyme

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Transverses

Lipase

Lyase

None of these

The monomeric units of starch is/are

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Glucose

Fructose

Glucose and fructose

Mannose

Which of the following is a water soluble vetamin?

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Niacin

Riboflavin

Trypsin

Ascorbic acid

Ricket is caused due to the deficiency of vitamin

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A

D

B

E

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