Chemistry Macromolecules MCQs Chapter 14 Class 12

Created on February 10, 2022 By Ali Durrani

Chemistry Ch 14 Class 12 MACROMOLECULES

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1 / 71

Polymerization of ethene produces which of the following polymers?

PMC Practice 3
Chemistry
Macromolecules
Elimination Tool:

A) Polyvinyl

B) Polethyl

C) Polyethylene

D) Polyethoxy

2 / 71

Which of the following enzyme is used for conversion of Starch into Sugar?

Zymase

Invertase

Amylase

Yeast

3 / 71

Fe’ 2 + is a cofactor of:

Chrome oxidase

Glucose 6-phosphatase

Carbonic anhydrase

Both a and b

4 / 71

Which of the following fertilizers has the maximum percentage of nitrogen in solid state?

NUMS 2016
Chemistry
Macromolecules
Elimination Tool:

A) Ammonia

B) Urea

C) Di ammonium hydrogen phosphate

D) Ammonium nitrate

5 / 71

________ is used as a preservative for life specimens.

NTS 2012
Chemistry
Macromolecules
Elimination Tool:

B) Ammonia

C) Methanol

D) NaOH

E) Formalin

6 / 71

Left-handed helix in proteins secondary structure is called as ______ :

PMC Practice 4
Chemistry
Macromolecules
Elimination Tool:

A) Alpha helix

B) Beta helix

C) Spiral

D) Concentrate

7 / 71

) Plastic cannot be recycled by

Depolymerization

Transformation

Deformation

None of these

8 / 71

The sugar unit in DNA molecule is:

NUMS 2019 Reconduct
Chemistry
Macromolecules
Elimination Tool:

A) Ribose

B) 2 – deoxyribose

C) 3 – deoxyribose

D) 2 – deoxypentose

9 / 71

Chloroform is used as the following except:

NUMS 2015
Chemistry
Macromolecules
Elimination Tool:

A) Precursor of making Teflon

B) Precursor of making refrigerants

C) Anaesthetic

D) Embalming chemicals

10 / 71

_____ is a macromolecule found in blood.

PMC Practice 2
Chemistry
Macromolecules
Elimination Tool:

A) Hemoglobin

B) Plasma

C) Creatinine

D) Plasmids

11 / 71

Which is the structure of polyvinyl chloride (polychloroethane)?

UHS 2018
Chemistry
Macromolecules
Elimination Tool:

A) -[CCl2-CCl2]-

B) -[HCCl-CH-Cl]-

C) [H2C=CH-Cl]

D) -[H2C-CH-Cl]-

12 / 71

How many types of polymers are there based on their natures?

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

A) 5

B) 4

C) 2

D) 3

13 / 71

……is a technique to separate impurities from chemical products:

NUMS 2014
Chemistry
Macromolecules
Elimination Tool:

A) Lands Berger's method

B) Fractional crystallization

C) Beckmann method

D) None

14 / 71

Monomers of Nylon 6,6 Is/are:

Caprolactam

Adipoyl chloride

Hexamethylene diarnine

Both b and c

15 / 71

Purification of bauxite whose major impurity Is silica (SiO2) is carried out through:

NTS 2010
Chemistry
Macromolecules
Elimination Tool:

A) Baeyer’s Method

B) Hall’s Method

C) Serpek’s Method

D) Contact Method

16 / 71

Harmful and undesirable reaction of a metal when exposed to the atmosphere or any chemical agent is known as:

NTS 2010
Chemistry
Macromolecules
Elimination Tool:

A) Allotropy

B) Electroplating

C) Collision

E) Corrosion

17 / 71

The melting point of NaCl is very high, 801°C. It is reduced to 600°C by the addition of _______ in Down’s process.

NTS 2018
Chemistry
Macromolecules
Elimination Tool:

A) Calcium chloride

B) Magnesium chloride

C) Aluminium chloride

D) Potassium chloride

18 / 71

All are enzymes involved in fermentation process except one:

NTS 2016 DUHS & JSMU
Chemistry
Macromolecules
Elimination Tool:

A) Zymase

B) Invertase

C) Lipase

D) Diastase

19 / 71

Which of following Is poison for catalyst:

Sulphur

Arsenic

Al203

Both a and b

20 / 71

A catalyst catalyzes reaction by:

Providing new path for reaction

) Increasing activation energy

Reacting with the reactants

Producing free Ions

21 / 71

All are dehydrating agents for alcohols to produce alkene except:

NTS 2016 DUHS & JSMU
Chemistry
Macromolecules
Elimination Tool:

A) Al2O3

B) P2O5

C) Dilute H2SO4

D) H3PO4

22 / 71

Which of the following is an addition polymer?

NUMS 2019 Reconduct
Chemistry
Macromolecules
Elimination Tool:

A) Polyester

B) Epoxy resins

C) Acrylic resins

D) Polyamides

23 / 71

Formula of fructose is:

C6H1206

C4H204n

C5H10O5

C5H10O6

24 / 71

A polymer called Bakelite is formed by the reaction of phenol with:

PMC Practice 2
Chemistry
Macromolecules
Elimination Tool:

A) Hydrogen

B) Ethers

C) Carboxylic acid

D) Formaldehyde

25 / 71

Bakelite is a polymer of formaldehyde and __________.

NUMS 2018
Chemistry
Macromolecules
Elimination Tool:

A) Phenol

B) Ethanol

C) Butanol

D) Methanol

26 / 71

Which one of the following compounds is an additional polymer?

UHS 2019
Chemistry
Macromolecules
Elimination Tool:

A) Polyvinyl chloride

B) Nylon

C) Carbohydrate

D) Polyester

27 / 71

The smog having high contents of SO2 is called:

NUMS 2019 Reconduct
Chemistry
Macromolecules
Elimination Tool:

A) Oxidising smog

B) Neutral smog

C) Basic smog

D) Reducing smog

28 / 71

In the NaCl crystal, chloride ions present at the face center are distributed in:

PMC Practice 2
Chemistry
Macromolecules
Elimination Tool:

A) One Unit Cell

B) 8 Unit Cells

C) 4 Unit Cells

D) 2 Unit Cells

29 / 71

Polymerization is of how many types:

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

A) Two

B) One

C) Three

D) Four

30 / 71

Polymer having a characteristics odour and mostly used as an adhesive material is

Polyvinyl chloride

Poly styrenec

Ploride

Polyvinyl acetate

31 / 71

Industrially water gas is converted into methanol by using catalyst:

NUMS 2019 Reconduct
Chemistry
Macromolecules
Elimination Tool:

A) CuO + ZnO

B) CuO + Cr2O3

C) Al2O3+ ZnO

D) ZnO + Cr2O3

32 / 71

The transparent plastic used to make combs and hairbrushes is called:

NTS 2018
Chemistry
Macromolecules
Elimination Tool:

A) PVA

B) PVC

C) Bakelite

D) Perspex

33 / 71

Adipic acid and Hexamethylene dlamine combine to form?

Nylon-6,6

Epoxy Resin

Polystyrene

Polyvinyl chloride

34 / 71

For which mechanism the first step involved is the same?

NTS 2016 DUHS & JSMU
Chemistry
Macromolecules
Elimination Tool:

A) E1 and E2

B) SN1 and E2

C) E1 and SN2

D) E1 and SN1

35 / 71

Which of the following element is not usually present in all proteins?

PMC Practice 3
Chemistry
Macromolecules
Elimination Tool:

A) Carbon

B) Hydrogen

C) Nitrogen

D) Sulphur

36 / 71

Which of the following is not a part of the human diet?

Glucose

Sucrose

Fructose

Cellulose

37 / 71

Starch is a polymer of: N

a-d glucos

b-d glucose

Amino acids

Amylose

38 / 71

Activator of phosphatase enzyme is _________.

PMC Practice 3
Chemistry
Macromolecules
Elimination Tool:

A) Mn2+

B) Mg2+

C) Zn2+

D) None of these options is correct

39 / 71

PVC is created from which halogen

Fl

Br

CI

I

40 / 71

Polyester is used in:

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

A) Cosmetic industry

B) Fabric industry

C) None of these

D) Food industry

41 / 71

What is the chemical reaction mechanism by which cells make polymers from monomers?

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

A) Dehydration reaction

B) Formation of disulphide bridges

C) Ionic bonding of monomers

D) Hydrolysis

42 / 71

Chlorine is manufactured commercially by the electrolysis of aqueous sodium chloride (brine). Which other products are made in this process?

NTS 2010
Chemistry
Macromolecules
Elimination Tool:

A) Hydrochloric acid and hydrogen

B) Hydrogen and sodium

C) Hydrogen and sodium hydroxide

D) Sodium and sodium hydroxide

43 / 71

Which of the following is NOT a “raw material” used in the Solvay process?

NTS 2016 SMBBMC
Chemistry
Macromolecules
Elimination Tool:

A) Sodium Chloride

B) Sodium Carbonate

C) Limestone

D) Ammonia gas

44 / 71

Common name of Octadecanoic acid is:

NTS 2016 DUHS & JSMU
Chemistry
Acids, Bases and Salts
Macromolecules
Elimination Tool:

A) Propionic acid

B) Stearic acid

C) Palmitic acid

D) Formic acid

45 / 71

Disposable cups are made of a polymer ‘polystyrene’. Polystyrene is:

UHS 2019
Chemistry
Macromolecules
Elimination Tool:

A) A polyamide

B) A condensation polymer

C) An addition polymer

D) A polyester

46 / 71

Which of the following is not a disaccharide?

Sucrose

Lactose

Raffinose

Dextrin

47 / 71

The polymer containing acrylonitrile as a monomer is:

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

A) Polyacrylonitrile

B) Rayon fibre

C) PVC

D) Teflon

48 / 71

The polymer formed by the polymerization of vinyl acetate is:

NUMS 2019 Cancelled
Chemistry
Macromolecules
Elimination Tool:

A) Cross linked linear polymer

B) Co polymer

C) Homopolymer

D) Condensation polymer

49 / 71

How many types of polymerization reactions are there?

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

A) 4

B) 2

C) 6

D) 3

50 / 71

Who introduced the concept of macromolecules?

PMC Practice 7
Chemistry
Macromolecules
Elimination Tool:

A) Runge

B) Maxwell

C) Staudinger

D) None of these

51 / 71

Which one of the following is the structure of Teflon?

UHS 2018
Chemistry
Alkyl Halides and Amines
Macromolecules
Elimination Tool:

A) (-CF2-CF2-)n

B) (-CF2-CCl2-)n

C) (-CH2-CH2-)n

D) (-CF2-CH2-)n

52 / 71

Polymers are made up of:

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

A) Monomers

B) Epimers

C) Enantiomers

D) Isomers

53 / 71

Three different polymers are polymerized to form

Copolymer

Terpolymer

Homopolymer

None of these

54 / 71

Ethylene is a monomer of polyethylene that is widely used as raw material for manufacturing plastics. It can be polymerized into two different classes: HDPE and LDPE. The following choices are the differences of HDPE and LDPE except:

NUMS 2019 Cancelled
Chemistry
Macromolecules
Elimination Tool:

A) The density

B) The branching of ethylene

C) Reaction conditions

D) Type of polymerization

55 / 71

Part of a polymer molecule has the following structure. -CH2 -CH2 -CH2 -CH2 -CH2 -CH2-

NUMS 2016
Chemistry
Macromolecules
Elimination Tool:

A) C2H4

B) C2H6

C) C3H6

D) C3H8

56 / 71

Which of the following is a monosaccharide ?

Maltose

Sucrose

lactose

Fructose

57 / 71

Proteins also contain _____ bonding.

PMC Practice 7
Chemistry
Macromolecules
Elimination Tool:

A) Covalent

B) Ionic

C) Hydrogen

D) Metallic

58 / 71

Which of the following has less amount of protein a

Potato

Milk

Egg

Fruit

59 / 71

Which one of the following is the pure carbon compound and used as a reducing agent in industries?

NTS 2018
Chemistry
Macromolecules
Elimination Tool:

A) Coal tar

B) Petroleum

C) Coal gas

D) Coke

60 / 71

Nylon-6,6 is also called:

UHS 2018
Chemistry
Macromolecules
Elimination Tool:

A) Poly styrene

B) Polyester

C) Polyamide

D) Polyvinyl alcohol

61 / 71

A

b

c

d

62 / 71

Teflon contains which of the following halide?

Chlorine

Bromine

Fluorine

All of these

63 / 71

Enzymes speed up the reaction upto:

PMC Practice 3
Chemistry
Macromolecules
Elimination Tool:

A) 10^10

B) 20^10

C) 10^30

D) 15^10

64 / 71

Which one is not true for H2SO4?

NTS 2012
Chemistry
Macromolecules
Elimination Tool:

A) Acid

B) Oxidizing agent

C) Nitrating agent

D) Dehydrating agent

65 / 71

Which of the following can he used as a source of energy

Lipids

Carbohydrates

Both a and b

None of these

66 / 71

) Nylon 6 —6 Is obtained by heating adipic acid with:

Hexethylene Diamine

Hexmethylene Diamine

hexmethylene amine

hexdimethylene diamine

67 / 71

Proteins are present in

Hair

Nails

Skin

All of these

68 / 71

Teflon is name of:

Polytetraflurorthylene

Polyhexafluoroethylene

Polytetrachloroethylene

Polyhydrafluoroethylene

69 / 71

Allotropes are of same?

PMC Practice 2
Chemistry
Macromolecules
Elimination Tool:

A) Compounds

B) Molecules

C) Ions

D) Elements

70 / 71

Graphite has a structural similarity with:

PMC Practice 2
Chemistry
Macromolecules
Elimination Tool:

A) B2H6

B) B4C

C) B

D) BN

71 / 71

The alloy Duralumin is composed of ______ of Al.

NTS 2018
Chemistry
Macromolecules
Elimination Tool:

A) 95%

B) 90%

C) 85%

D) 80%

Your score is

The average score is 58%

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Chemistry Macromolecules MCQs Chapter 14 Class 12

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