Question # 1

Ascorbic acid is a chemical name of

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Vitamin D

Vitamin A

Vitamin C

Vitamin B₆

Which of the following is fully fluorinated polymer?

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Neoprene

Teflon

Thiokol

PVC

Protein are classified into

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Simple protein

Complex protein

Derived proteins

All of these

The degree of unsaturation in fats or oils is usually measured by numbers of grams of iodine required by 100 grmas of fat, this is called

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Oil number

Saturation number

Iodine number

Un saturation number

In which of these processes are smell organic molecules made into macromolecules?

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The cracking of petroleum fractions

The fractional distillation of crude oil

The polymerization of ethane

The hydrolysis of proteins

Factors affecting denaturation of proteins:

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Change in temp and pH

Strong reducing agent

Strong oxidizing agent

All of these

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

Which of the following is a polyamide?

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Nylon

Orlon

Teflon

Terylene

The proteins which are derived by conjugated proteins are called as

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Simple protein

Complex protein

Derived protein

None

Bakelite is obtained from phenol by reacting with

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Acetaldehyde

Acetal

Formaldehyde

Chlorobenzene

Plastics are pollution problem because many plastics:

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Are made from petroleleum

Are very inflammable

Burn to produce toxic funes

Decompose to produce toxic products

On hydrolysis of starch, we finally get

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Glucose

Fructose

Both

Sucrose

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

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Thermoplastic

Thermosetting

Both a and b

None

Which of the following is an example of ketohexose?

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Mannose

Galactose

Maltose

Fructose

A polymer may be

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Linear

Branched

Cross linked

All of these

Activity of the enzyme is reduced by

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Temperature

Concentration

pH

Inhibitors

Orlon is a polymer of

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Tetrafluoroethylene

Acrylonitrile

Ethanoic acid

Benzene

Major food factors are:

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Fats and oils

Carbohydrates

Protiens

All of these

Organic synthetic or man made polymers are plastics, rubber and fibre. Which is not a synthetic polymer

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Silk

Polyester

Polyvinyl chloride

Nylon

Which teat is not given by both glucose and fructose

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Give yellow ppt of CHl₃with alkaline aqueous iodine

With 2, 4-DNPH give yellow ppt of hydrazone

Evolve H₂gas with Na metal

Oxidised with [Ag(NH₃)₂]⁺i.e. Tollen's reagent

Which is not a steroid

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Cholesterol

Ergosterol

Phospholipids

None of these

Two or more similar monomers combine to form:

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Homopolymer

Copolymer

Ter polymer

Thermoplastic polymers

A fibre which is made from acrylonitrile as monomer

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PVC

Rayon fibre

Acrylic fibre

Polyester fibre

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

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Zero

100%

50%

Minimum

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

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20

10

5

14

Which of these polymers is an addition polymer?

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Nylon-6,6

Polystrene

Terylene

Epoxy resin

Natural rubber is a polymer of

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Butadiene

Ethyne

Styrene

Isoprene

Which of the following is a molecular diseases?

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Allergy

Cancer

German measles

Sickle cell anemia

A polymer may be

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Homopolemer

Co-polymer

Terpolymer

All of these

β-D-glucose is a monomer for

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Strach

Cellulose

Glycogen

Protein

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ECAT Chemistry Chapter 25 Macromolecules Online Test MCQs With Answers

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