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ECAT Chemistry Chapter 25 Macromolecules Online Test MCQs With Answers
Question # 1
A sequence of how many nucleotides in massenger RNA makes a codon for an amino acid
Choose an answer
Three
Four
One
Two
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Question # 2
Which of the following is a constituent of nylon?
Choose an answer
Adipic acid
Styrene
Teflon
None of these
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Question # 3
Substances that render enzymes catalytically inactive are called
Choose an answer
Conenzymes
Substrates
Inhibitors
Apoezymes
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Question # 4
Enzymes are catalysts which contain other than carbon and hydrogen one other element
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Oxygen
Sulphur
Phosphorus
Iodine
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Question # 5
For every reaction occurring in the body three is at least one type of
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Enzyme
Vitamin
Protein
Amino acid
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Question # 6
Which of the following is a steroid
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Vitamin A
Vitamin B
Vitamin C
Vitamin D
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Question # 7
Orlon is a polymer of
Choose an answer
Tetrafluoroethylene
Acrylonitrile
Ethanoic acid
Benzene
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Question # 8
Terylene is madeby polymerization of terephthalic acid with
Choose an answer
Ethylene glycol
Phenol
Ethanol
Catechol
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Question # 9
The reagent which forms crystalline osazone derivative when treated with glucose is
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Fehling solution
Phenyl hydrazine
Benedict solution
Hydroxyl amine
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Question # 10
Enzymes catalyse all biological reactions occurring in the cell. What is true about an enzyme
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Enzyme is a small molecule
Enzyme is acidic in nature
Enzyme is a protein
Enzyme is a lipid
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Question # 11
Monosaccharides belong to the group
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Lipids
Fats
Proteins
Carbohydrates
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Question # 12
Which of the following has magnesium?
Choose an answer
Carbonic anhydrase
Haemocyanin
chlorophyll
Vitamin B
12
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Question # 13
Which one of the following is not an example of chain growth polymer?
Choose an answer
Neoprene
Bunna-S
PMMA
Glyptal
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Question # 14
In which of these processes are smell organic molecules made into macromolecules?
Choose an answer
The cracking of petroleum fractions
The fractional distillation of crude oil
The polymerization of ethane
The hydrolysis of proteins
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Question # 15
Which of the following is a biodegradable polymer?
Choose an answer
Cellulose
Polyethene
Polyvinyl chloride
Nylon-6
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Question # 16
Which is not an enzyme
Choose an answer
Transverses
Lipase
Lyase
None of these
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Question # 17
One of the followings is not type of polymer
Choose an answer
Homopolymer
Copolymer
Heteropolymer
Terpolymer
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Question # 18
Violet colour is obtained when dilute CuSO
4
is added in alkaline solution of protein. This test is known as
Choose an answer
Biuret
Xanthoproteic test
Hopkins-cole
All of these
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Question # 19
Which property is not present in lipids?
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Liquid
Solid or semi solid
Soluble in water
Form emultion
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Question # 20
The other name of cross linked polymers is
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Linear polymer
Branched polymer
Inter connected polymers
None of these
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Question # 21
Which one of the following enzymes brings about the hydrolysis of fats
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Urease
Maltase
Zymase
Lypase
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Question # 22
Which of these polymers is an addition polymer
Choose an answer
Nylon 6,6
Polystyrene
Terylene
Epoxy resin
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Question # 23
Ascorbic acid is a chemical name of
Choose an answer
Vitamin D
Vitamin A
Vitamin C
Vitamin B
6
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Question # 24
Which of the following has ester linkage?
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Nylon
Bakelite
Terylene
PVC
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Question # 25
Vegetable oils are
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Unsaturated fatty acids
Glycerides of unsaturated fatty acids
Glycerides of saturated fatty acids
Essential oils obtained from plants
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Question # 26
Which of these polymers is a synthetic polymer
Choose an answer
Animal fat
Starch
Cellulose
Polyester
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Question # 27
Which one of the following is a water soluble vitamin
Choose an answer
D
K
A
Ascorbic acid (Vic C)
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Question # 28
Which one of the following statements of glucose and sucrose is incorrect?
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Both are soluble in water
Both are naturally occuring
Both are carbohydrates
Both are disaccharides
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Question # 29
What is the most common catalyst used in hydrogenation of oils
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Cobalt
Nickel
Tungsten
Copper
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Question # 30
The polymers which can be re-softened again and again are caled
Choose an answer
Thermoplastic
Thermosetting
Both a and b
None
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Question # 31
A fibre which is made from acrylonitrile as monomer
Choose an answer
PVC
Rayon fibre
Acrylic fibre
Polyester fibre
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