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

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

Question # 2

Two or more similar monomers combine to form:

Question # 3

The metal present in blood is

Question # 4

Copolymer is

Question # 5

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

Question # 6

Hydrolysis of sucrose is called

Question # 7

Vegetable oils are

Question # 8

The group linkage present in fats is

Question # 9

Protein may have

Question # 10

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

Question # 11

DNA has deoxyribose, a base and the third component is

Question # 12

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

Question # 13

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

Question # 14

Vegetables oils are:

Question # 15

How is the secondary structure of protein stabilized

Question # 16

Which of the following is a steroid

Question # 17

Soft drinks and baby feeding bottles are generally made up of

Question # 18

Which property is not present in lipids?

Question # 19

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

Question # 20

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

Question # 21

Naturally occurring lipids are called

Question # 22

The high molecular weight materials which yield on hydrolysis the amino acids is called:

Question # 23

Which of the following is an example of ketohexose?

Question # 24

Ascorbic acid is a chemical name of

Question # 25

Which of the following fibres are made of polyamides?

Question # 26

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

Question # 27

A polymer may be

Question # 28

Glycine at pH7 has the structure

Question # 29

Poly hydroxyl compounds of aldehyde and ketones are:

Question # 30

Glyptal polymer is obtained from glycerol on reacting with

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ECAT Chemistry Chapter 25 Important MCQ's

Sr.# Question Answer
1 A sequence of how many nucleotides in massenger RNA makes a codon for an amino acid
A. Three
B. Four
C. One
D. Two
2 A fat or oil is characterised for extent of unsaturation by one of the following number, which one
A. Rancidity number
B. Acid number
C. Iodine number
D. Saponicfication number
3 Polyester resins have special use in:
A. Clothing
B. Paints
C. Emulsion
D. Floor covering
4 Substances that render enzymes catalytically inactive are called
A. Conenzymes
B. Substrates
C. Inhibitors
D. Apoezymes
5 Iodine value of an oil or fat may be defined as
A. The number of grams of iodine taken up by 1 g of the oil or fat
B. The number of grams of iodine taken by 10 g of the oil or fat
C. The number of grams of iodine taken by 100 g of the oil or fat
D. None of the above
6 The raw material to form nylon is
A. Adipic acid
B. Butadiene
C. Isoprene
D. Ethylene
7 Which is not a steroid
A. Cholesterol
B. Ergosterol
C. Phospholipids
D. None of these
8 Macromolecules or polymers are large molecules built up from small molecules called monomers. This hypothesis put forward by
A. Schrodixger
B. Standinger
C. Lewis
D. Newton
9 Which of the following is the repeating monomeric unit in cellulose
A. Sucrose
B. Maltose
C. Cellobiose
D. Glucose
10 Factors affecting denaturation of proteins:
A. Change in temp and pH
B. Strong reducing agent
C. Strong oxidizing agent
D. All of these

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