Question # 1

The length of the polymer chain is specified by the number of repeating units which is called.

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Condensation

Co-polymerization

Iodine number

Degree of polymerization

Which one of the following enzyme is used for the treatment of blood cancer in children.

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Thrombin

Asparaginase

Glucokinase

Fumarase

Which of the following element is not present in all proteins

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Carbon

hydrogen

Nitrogen

Sulphur

A carbohydrate that cannot be acid hydrolysed is called.

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Monosaccharides

Di saccharides

Poly saccharides

Starch

Cholesterol is an important precursor in the biosynthesis of

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Sex harmonies

Adrenal hormones

Vitamin D

All of these

Which one of the following carbohydrates give blue colour with iodine.

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Glucose

fructose

Sucrose

Starch

In which these process are small organic molecules made into macromolecules.

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The cracking of petroleum fractions

The fractional distillation of crude oil

The polymerization of ethene

The hydrolysis of proteins

Which of the following enzymes brings about the hydrolysis of fats

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Urease

Maltase

Zymase

Lipase

Starch is polymer is

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Fructose

a -d Glucose

Sucrose

B-D-Glucose

To which class of organic compounds soap belongs.

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Ether

Ketones

Aldehyde

Salt of an organic acid

Which carbohydrate is called animal starch

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Glucose

Fructose

Glycogen

Starch

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

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fibre

plastic

varnish

polyamide resin

Starch is

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Monosaccharide

Disaccharide

Polysaccharide

Oligosaccharide

Starch mixture of

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Amylose and xylose

Amylopectin and lactose

Lactose and sucrose

amylose and amylopectin

The fiber in which monomer isCH2=CH-Cl is known as

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Saran fiber

PVC

Rayon fiber

Arcylic fiber

Which process is used to convert vegetable oil to vegetable ghee.

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Hydrolysis

Oxidation

Esterification

Hydrogenation

Vegetable oils are

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Polyesters

Glycerides of unsaturated fatty acids

Essential oils

Fatty acids

Plastics are 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

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