Question # 1

Which of the following is obtained by condensation polymerization?

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Polyethene

Teflon

Phenol formaldehyde resin

Nitrile rubber

The prosthetic group in glycoprotein is

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Carbohydrate

Fat

Vitamin

Nucleic acid

Which of the following is a water soluble vetamin?

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Niacin

Riboflavin

Trypsin

Ascorbic acid

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

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2

7

10

14

An oil or fat with no double bond have iodine number:

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Zero

100%

50%

Minimum

Purine derivative among the following bases is

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Thymine

Uracil

Guanine

Cytosine

Which is the polymer that has amide linkage in its structure

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PVC

Poly ethene

Polyester

Nylon

Violet colour is obtained when dilute CuSO₄is added in alkaline solution of protein. This test is known as

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Biuret

Xanthoproteic test

Hopkins-cole

All of these

Monosaccharides are

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Aldoses

Ketoses

Either a and b

None of these

(CH₂O)_nis general formula for

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Monosaccharides

Oiligosaccharides

Polysaccharides

None of these

The fiber which is made from acrylonitrile as monomer:

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PVC

Rayon Fiber

Acrylic fiber

Polyester fiber

The group linkage present in fats is

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Peptide linkage

Ester linkage

Glycosidic linkage

None of these

Which of the following is fully fluorinated polymer?

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Neoprene

Teflon

Thiokol

PVC

The high molecular weight materials which yield on hydrolysis the amino acids is called:

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Carbohydrates

Lipids

Fatty acids

Proteins

Which of the following is a biodegradable polymer?

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Cellulose

Polyethene

Polyvinyl chloride

Nylon-6

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

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Enzyme

Vitamin

Protein

Amino acid

RNA is a polymer of nucleotide which consist of three components. Which one is not the component in the nucleotide of an RNA

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D-Ribose

Wracil base

Prosphate group

Thyamine base

A fat or oil is characterised for extent of unsaturation by one of the following number, which one

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Rancidity number

Acid number

Iodine number

Saponicfication number

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

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20

10

5

14

The other name of cross linked polymers is

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Linear polymer

Branched polymer

Inter connected polymers

None of these

Enzymes are

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Proteins

Minerals

Oils

Fatty acids

How is the secondary structure of protein stabilized

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Through hydrogen bonding

Through ionic bonding

Through van der wall forces

Through covalent bonding

Protein are classified into

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Simple protein

Complex protein

Derived proteins

All of these

β-D-glucose is a monomer for

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Strach

Cellulose

Glycogen

Protein

Cotton has cellulose in it:

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96%

97%

98%

99%

Protein may have

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Primary structure

Secondary structure

Tertiary structure

All of these

The fibre which is made form acrylonitrile as monomer

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PVC

Rayon fibre

Acrylic fibre

Polyester fibre

Which behaves as insulator for animals body?

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Carbohydrates

Proteins

Fats

Skin

Natural rubber is a polymer of

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Butadiene

Ethyne

Styrene

Isoprene

Glyptal polymer is obtained from glycerol on reacting with

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Malonic acid

Phthalic acid

Maleic acid

Acetic acid

Oxidation reduction is done by

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Oxidoreductase

Lipases

Lyase

None of these

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