ECAT Pre Engineering Chemistry Chapter 25 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 25 Macromolecules

Try The MCQ's Test For ECAT Chemistry Chapter 25 Macromolecules

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ECAT Chemistry Chapter 25 Macromolecules

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Question # 1

DNA is a polynucleic acid. The monomer is known as a nucleotide. What is not the component of the nucleoptide

Question # 2

Which of the following is the repeating monomeric unit in cellulose

Question # 3

Bakelite is a product formed form

Question # 4

Which of the following is a steroid

Question # 5

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

Question # 6

At what pH glycine shows the structure H3N+-- CH2-- COOH

Question # 7

The monomeric units of starch is/are

Question # 8

Which of the following statements is incorrect about vitamins

Question # 9

Which of these polymers is an addition polymer

Question # 10

Vegetable oils are

Question # 11

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

Question # 12

In fructose the possible optical isomers are

Question # 13

Teflon, styron and neoprene are all

Question # 14

Which property is not present in lipids?

Question # 15

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

Question # 16

Naturally occurring lipids are called

Question # 17

Peptide bond is a key feature in

Question # 18

The fibre which is made form acrylonitrile as monomer

Question # 19

DNA has deoxyribose, a base and the third component is

Question # 20

Which of the following is not present in RNA?

Question # 21

A polymer may be

Question # 22

Which has maximum protein content?

Question # 23

Vegetables oils are:

Question # 24

Enzymes are

Question # 25

Which one is a polymer compound?

Question # 26

Which one of the following is a water soluble vitamin

Question # 27

The three dimensional folding and twisting of a polypeptide chain give rise to

Question # 28

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

Question # 29

The fiber which is made from acrylonitrile as monomer:

Question # 30

Plastics are pollution problem because many plastics:

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ECAT Chemistry Chapter 25 Important MCQ's

Sr.# Question Answer
1 Which one of the following is not an example of chain growth polymer?
A. Neoprene
B. Bunna-S
C. PMMA
D. Glyptal
2 Which carbohydrates is an essential constituent of plant cells?
A. Starch
B. Cellulose
C. Sucrose
D. Vitamins
3 Glycogen is stored in
A. Animals
B. Plants
C. Soil
D. None of these
4 Which behaves as insulator for animals body?
A. Carbohydrates
B. Proteins
C. Fats
D. Skin
5 The development of disagreeable odur in fats or oil is called
A. Fragrance
B. Perfume
C. Rancidity
D. Smell
6 Glycine at pH7 has the structure
A. H2N -- CH2 -- COOH
B. H3N+-- CH2-- COOH
C. H2N -- CH2COO-
D. H3N+-- CH2-- COO-
7 Plastics are a pollution problem because many plastics
A. Are made from petroleum
B. Are very inflammable
C. Burn to produce toxic fumes
D. Decompose to produce toxic products
8 Which of the following is a biodegradable polymer?
A. Cellulose
B. Polyethene
C. Polyvinyl chloride
D. Nylon-6
9 Organic synthetic or man made polymers are plastics, rubber and fibre. Which is not a synthetic polymer
A. Silk
B. Polyester
C. Polyvinyl chloride
D. Nylon
10 An oil or fat with no double bond have iodine number:
A. Zero
B. 100%
C. 50%
D. Minimum

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