Chemistry Macromolecules MCQs Chapter 14 Class 12

Created on February 10, 2022 By Ali Durrani

Chemistry Ch 14 Class 12 MACROMOLECULES

This is the Free Access to Limited MCQs. Enroll to PLS Boost Premium Bundle to Get More MCQs HERE

1 / 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

2 / 71

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

Lipids

Carbohydrates

Both a and b

None of these

3 / 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

4 / 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

5 / 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

6 / 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

7 / 71

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

Glucose

Sucrose

Fructose

Cellulose

8 / 71

PVC is created from which halogen

Fl

Br

CI

I

9 / 71

Allotropes are of same?

PMC Practice 2
Chemistry
Macromolecules
Elimination Tool:

A) Compounds

B) Molecules

C) Ions

D) Elements

10 / 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

11 / 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

12 / 71

) Plastic cannot be recycled by

Depolymerization

Transformation

Deformation

None of these

13 / 71

Which of the following is not a disaccharide?

Sucrose

Lactose

Raffinose

Dextrin

14 / 71

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

Hexethylene Diamine

Hexmethylene Diamine

hexmethylene amine

hexdimethylene diamine

15 / 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

16 / 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

17 / 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

18 / 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

19 / 71

Fe’ 2 + is a cofactor of:

Chrome oxidase

Glucose 6-phosphatase

Carbonic anhydrase

Both a and b

20 / 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

21 / 71

Which of the following is a monosaccharide ?

Maltose

Sucrose

lactose

Fructose

22 / 71

Three different polymers are polymerized to form

Copolymer

Terpolymer

Homopolymer

None of these

23 / 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

24 / 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]-

25 / 71

Formula of fructose is:

C6H1206

C4H204n

C5H10O5

C5H10O6

26 / 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

27 / 71

Teflon contains which of the following halide?

Chlorine

Bromine

Fluorine

All of these

28 / 71

Nylon-6,6 is also called:

UHS 2018
Chemistry
Macromolecules
Elimination Tool:

A) Poly styrene

B) Polyester

C) Polyamide

D) Polyvinyl alcohol

29 / 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

30 / 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

31 / 71

The alloy Duralumin is composed of ______ of Al.

NTS 2018
Chemistry
Macromolecules
Elimination Tool:

A) 95%

B) 90%

C) 85%

D) 80%

32 / 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

33 / 71

Graphite has a structural similarity with:

PMC Practice 2
Chemistry
Macromolecules
Elimination Tool:

A) B2H6

B) B4C

C) B

D) BN

34 / 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

35 / 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

36 / 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

37 / 71

Teflon is name of:

Polytetraflurorthylene

Polyhexafluoroethylene

Polytetrachloroethylene

Polyhydrafluoroethylene

38 / 71

Proteins also contain _____ bonding.

PMC Practice 7
Chemistry
Macromolecules
Elimination Tool:

A) Covalent

B) Ionic

C) Hydrogen

D) Metallic

39 / 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

40 / 71

A catalyst catalyzes reaction by:

Providing new path for reaction

) Increasing activation energy

Reacting with the reactants

Producing free Ions

41 / 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

42 / 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

43 / 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

44 / 71

Adipic acid and Hexamethylene dlamine combine to form?

Nylon-6,6

Epoxy Resin

Polystyrene

Polyvinyl chloride

45 / 71

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

Zymase

Invertase

Amylase

Yeast

46 / 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

47 / 71

_____ is a macromolecule found in blood.

PMC Practice 2
Chemistry
Macromolecules
Elimination Tool:

A) Hemoglobin

B) Plasma

C) Creatinine

D) Plasmids

48 / 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

49 / 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

50 / 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

51 / 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

52 / 71

Bakelite is a polymer of formaldehyde and __________.

NUMS 2018
Chemistry
Macromolecules
Elimination Tool:

A) Phenol

B) Ethanol

C) Butanol

D) Methanol

53 / 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

54 / 71

________ is used as a preservative for life specimens.

NTS 2012
Chemistry
Macromolecules
Elimination Tool:

B) Ammonia

C) Methanol

D) NaOH

E) Formalin

55 / 71

Monomers of Nylon 6,6 Is/are:

Caprolactam

Adipoyl chloride

Hexamethylene diarnine

Both b and c

56 / 71

A

b

c

d

57 / 71

Proteins are present in

Hair

Nails

Skin

All of these

58 / 71

How many types of polymerization reactions are there?

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

A) 4

B) 2

C) 6

D) 3

59 / 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

60 / 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

61 / 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

62 / 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

63 / 71

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

Polyvinyl chloride

Poly styrenec

Ploride

Polyvinyl acetate

64 / 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

65 / 71

Who introduced the concept of macromolecules?

PMC Practice 7
Chemistry
Macromolecules
Elimination Tool:

A) Runge

B) Maxwell

C) Staudinger

D) None of these

66 / 71

Polymers are made up of:

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

A) Monomers

B) Epimers

C) Enantiomers

D) Isomers

67 / 71

Which of the following has less amount of protein a

Potato

Milk

Egg

Fruit

68 / 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

69 / 71

Starch is a polymer of: N

a-d glucos

b-d glucose

Amino acids

Amylose

70 / 71

Polymerization is of how many types:

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

A) Two

B) One

C) Three

D) Four

71 / 71

Which of following Is poison for catalyst:

Sulphur

Arsenic

Al203

Both a and b

Your score is

The average score is 58%

0%

PLS Prep by PakLearningSpot

Chemistry Macromolecules MCQs Chapter 14 Class 12

PLS Boost Bundle