Chemistry Practice MCQs Chapter 14 Class 12


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Created on By Ali Durrani

Chemistry Ch 14 Class 12 MACROMOLECULES

1 / 71

For which mechanism the first step involved is the same?

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2 / 71

How many types of polymerization reactions are there?

PMC 2021 Tested
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3 / 71

Industrially water gas is converted into methanol by using catalyst:

NUMS 2019 Reconduct
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4 / 71

The sugar unit in DNA molecule is:

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5 / 71

A catalyst catalyzes reaction by:

6 / 71

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

NTS 2010
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7 / 71

All are dehydrating agents for alcohols to produce alkene except:

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8 / 71

Which of the following is a monosaccharide ?

9 / 71

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

NTS 2010
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10 / 71

_____ is a macromolecule found in blood.

PMC Practice 2
Chemistry
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11 / 71

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

12 / 71

Nylon-6,6 is also called:

UHS 2018
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13 / 71

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

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14 / 71

All are enzymes involved in fermentation process except one:

NTS 2016 DUHS & JSMU
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15 / 71

Graphite has a structural similarity with:

PMC Practice 2
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16 / 71

The smog having high contents of SO2 is called:

NUMS 2019 Reconduct
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17 / 71

Which is the structure of polyvinyl chloride (polychloroethane)?

UHS 2018
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18 / 71

Who introduced the concept of macromolecules?

PMC Practice 7
Chemistry
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19 / 71

Polyester is used in:

PMC 2021 Tested
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20 / 71

Teflon contains which of the following halide?

21 / 71

Activator of phosphatase enzyme is _________.

PMC Practice 3
Chemistry
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22 / 71

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

PMC Practice 2
Chemistry
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23 / 71

Which of the following has less amount of protein a

24 / 71

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

PMC Practice 4
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25 / 71

Teflon is name of:

26 / 71

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

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27 / 71

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

28 / 71

Which one of the following is the structure of Teflon?

UHS 2018
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Alkyl Halides and Amines
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29 / 71

Proteins also contain _____ bonding.

PMC Practice 7
Chemistry
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30 / 71

Common name of Octadecanoic acid is:

NTS 2016 DUHS & JSMU
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Acids, Bases and Salts
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31 / 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.

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32 / 71

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

NTS 2018
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33 / 71

Polymerization of ethene produces which of the following polymers?

PMC Practice 3
Chemistry
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34 / 71

Bakelite is a polymer of formaldehyde and __________.

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35 / 71

The polymer containing acrylonitrile as a monomer is:

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36 / 71

Which one is not true for H2SO4?

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37 / 71

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

38 / 71

Which of the following is an addition polymer?

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39 / 71

________ is used as a preservative for life specimens.

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40 / 71

Which one of the following compounds is an additional polymer?

UHS 2019
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41 / 71

Formula of fructose is:

42 / 71

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

43 / 71

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

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44 / 71

Which of following Is poison for catalyst:

45 / 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
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46 / 71

Monomers of Nylon 6,6 Is/are:

47 / 71

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

UHS 2019
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48 / 71

Polymerization is of how many types:

PMC 2021 Tested
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49 / 71

Enzymes speed up the reaction upto:

PMC Practice 3
Chemistry
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50 / 71

The polymer formed by the polymerization of vinyl acetate is:

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51 / 71

Starch is a polymer of: N

52 / 71

Fe’ 2 + is a cofactor of:

53 / 71

54 / 71

Proteins are present in

55 / 71

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

PMC Practice 3
Chemistry
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56 / 71

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

NTS 2016 SMBBMC
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57 / 71

Chloroform is used as the following except:

NUMS 2015
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58 / 71

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

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59 / 71

Polymers are made up of:

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60 / 71

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

NUMS 2014
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61 / 71

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

NUMS 2016
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62 / 71

Which of the following is not a disaccharide?

63 / 71

Three different polymers are polymerized to form

64 / 71

Allotropes are of same?

PMC Practice 2
Chemistry
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65 / 71

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

PMC Practice 2
Chemistry
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66 / 71

PVC is created from which halogen

67 / 71

Adipic acid and Hexamethylene dlamine combine to form?

68 / 71

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

69 / 71

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

NUMS 2016
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70 / 71

The alloy Duralumin is composed of ______ of Al.

NTS 2018
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71 / 71

) Plastic cannot be recycled by

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