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

00:00
Question # 1

Poly hydroxyl compounds of aldehyde and ketones are:

Question # 2

Which is not an enzyme

Question # 3

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

Question # 4

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

Question # 5

Which teat is not given by both glucose and fructose

Question # 6

An example of water soluble vitamin is

Question # 7

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

Question # 8

Protein are classified into

Question # 9

Which one of the following is not an example of chain growth polymer?

Question # 10

Vitamin A is present in

Question # 11

There are 20 amino acids found in protein which is not the property of these amino acids

Question # 12

Glycine at pH7 has the structure

Question # 13

Which of the following is an example of ketohexose?

Question # 14

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

Question # 15

When a nitrogeneous base combine with a sugar it is called

Question # 16

Nylon, 6,6 is a condensation polymer of

Question # 17

A polymer may be

Question # 18

Plastics are pollution problem because many plastics:

Question # 19

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

Question # 20

A nucleoside may be

Question # 21

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

Question # 22

Which is the polymer that has amide linkage in its structure

Question # 23

Which of these polymers is a synthetic polymer

Question # 24

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

Question # 25

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

Question # 26

The prosthetic group in glycoprotein is

Question # 27

Which of the following elements is not present in all proteins?

Question # 28

Which of the following is not present in RNA?

Question # 29

Substances that render enzymes catalytically inactive are called

Question # 30

Which one of the following statements of glucose and sucrose is incorrect?

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ECAT Chemistry Chapter 25 Important MCQ's

Sr.# Question Answer
1 Glyptal polymer is obtained from glycerol on reacting with
A. Malonic acid
B. Phthalic acid
C. Maleic acid
D. Acetic acid
2 Violet colour is obtained when dilute CuSO4is added in alkaline solution of protein. This test is known as
A. Biuret
B. Xanthoproteic test
C. Hopkins-cole
D. All of these
3 The reaction between fat and NaOH is called:
A. Esterification
B. Hydrogenolysis
C. Fermentation
D. Sponification
4 Which polymerization is free radical machanism based
A. Addition
B. Condensation
C. Both a and b
D. None
5 The digestion of fats in the intestines is aided by
A. Diffusion
B. Protection
C. Peptization
D. Emulsification
6 The temp. and pressure used for PVC polymerization is
A. 10°C and 10 atm
B. 20°C and 20 atm
C. 52°C and 9 atm
D. 100°C and 10 atm
7 The development of disagreeable odur in fats or oil is called
A. Fragrance
B. Perfume
C. Rancidity
D. Smell
8 Which of the following is fully fluorinated polymer?
A. Neoprene
B. Teflon
C. Thiokol
D. PVC
9 Polyester resins have special use in:
A. Clothing
B. Paints
C. Emulsion
D. Floor covering
10 A nucleoside may be
A. Ribonuleoside
B. Deoxyribonucleoside
C. Both a and b
D. None

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