Question # 1

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

A nucleoside may be

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Ribonuleoside

Deoxyribonucleoside

Both a and b

None

Two vitamins absorbed from intestine along with fats are

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A, D

A, B

A, C

D, B

Polyester resins have special use in:

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Clothing

Paints

Emulsion

Floor covering

Which of the following is not present in RNA?

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Uracil

Thymine

Ribose

Phosphate

Major food factors are:

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Fats and oils

Carbohydrates

Protiens

All of these

In fructose the possible optical isomers are

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12

8

16

4

Terylene is madeby polymerization of terephthalic acid with

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Ethylene glycol

Phenol

Ethanol

Catechol

Natural rubber is a polymer of

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Butadiene

Ethyne

Styrene

Isoprene

Enzymes are catalysts which contain other than carbon and hydrogen one other element

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Oxygen

Sulphur

Phosphorus

Iodine

Poly hydroxyl compounds of aldehyde and ketones are:

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Carbohydrates

Proteins

Fats

Lipids

Peptide bond is a key feature in

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Polysaccharide

Proteins

Nucleotide

Vitamins

Which of the following is fully fluorinated polymer?

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Neoprene

Teflon

Thiokol

PVC

Which of the following is obtained by condensation polymerization?

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Polyethene

Teflon

Phenol formaldehyde resin

Nitrile rubber

The other name of cross linked polymers is

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Linear polymer

Branched polymer

Inter connected polymers

None of these

Cellulose does:

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Satisfy human appetite

Stimulates intestinal peristalsis

Gives fibre and bulk to the food

All of these

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

A polymer may be

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Homopolemer

Co-polymer

Terpolymer

All of these

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

Oxidation reduction is done by

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Oxidoreductase

Lipases

Lyase

None of these

Glycogen is stored in

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Animals

Plants

Soil

None of these

Monosaccharides belong to the group

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Lipids

Fats

Proteins

Carbohydrates

Synthetic polymer prepared from caprolactum is known is

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Nylon 610

Teflon

Terylene

Nylon-6

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

The development of disagreeable odur in fats or oil is called

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Fragrance

Perfume

Rancidity

Smell

Enzymes catalyse all biological reactions occurring in the cell. What is true about an enzyme

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Enzyme is a small molecule

Enzyme is acidic in nature

Enzyme is a protein

Enzyme is a lipid

The metal present in blood is

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Al

Hg

Cu

Fe

Sterols, vitamin D and terpenese belong to

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Simple lipids

Complex lipids

Derived lipids

None

The main structure features of proteins is

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An ester linkage

An ether linkage

The peptide linkage

All

Molar mass of high molecular w.f. polymers ranges from:

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1000 to 10000

10000 to 100000

100000 to 1000000

1000 to 100000000

Which is the polymer that has amide linkage in its structure

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PVC

Poly ethene

Polyester

Nylon

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