Chemistry Chapter 14 – Macromolecules (Class 12) for FSC, Entry Tests & NTS Preparation
Chapter 14, Macromolecules, is an important topic for Class 12 students preparing for FSC board exams and medical/engineering entry tests like MDCAT, NUMS, AKU, NUST, ECAT, and NTS exams. This chapter explains the structure, classification, properties, and functions of macromolecules, including carbohydrates, proteins, nucleic acids, and synthetic polymers. Understanding macromolecules is essential for studying biochemical processes, molecular biology, and industrial applications.
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Polymerization is of how many types:
PMC 2021 Tested
Chemistry
Macromolecules
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_____ is a macromolecule found in blood.
PMC Practice 2
Chemistry
Macromolecules
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Polymerization of ethene produces which of the following polymers?
PMC Practice 3
Chemistry
Macromolecules
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Which of the following element is not usually present in all proteins?
PMC Practice 3
Chemistry
Macromolecules
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Which one of the following is the pure carbon compound and used as a reducing agent in industries?
NTS 2018
Chemistry
Macromolecules
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All are dehydrating agents for alcohols to produce alkene except:
NTS 2016 DUHS & JSMU
Chemistry
Macromolecules
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Left-handed helix in proteins secondary structure is called as ______ :
PMC Practice 4
Chemistry
Macromolecules
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Proteins also contain _____ bonding.
PMC Practice 7
Chemistry
Macromolecules
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Which of the following is NOT a “raw material” used in the Solvay process?
NTS 2016 SMBBMC
Chemistry
Macromolecules
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Purification of bauxite whose major impurity Is silica (SiO2) is carried out through:
NTS 2010
Chemistry
Macromolecules
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Which one of the following compounds is an additional polymer?
UHS 2019
Chemistry
Macromolecules
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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
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How many types of polymerization reactions are there?
PMC 2021 Tested
Chemistry
Macromolecules
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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
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Which of the following is an addition polymer?
NUMS 2019 Reconduct
Chemistry
Macromolecules
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Harmful and undesirable reaction of a metal when exposed to the atmosphere or any chemical agent is known as:
NTS 2010
Chemistry
Macromolecules
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Which one of the following is the structure of Teflon?
UHS 2018
Chemistry
Alkyl Halides and Amines
Macromolecules
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The polymer formed by the polymerization of vinyl acetate is:
NUMS 2019 Cancelled
Chemistry
Macromolecules
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All are enzymes involved in fermentation process except one:
NTS 2016 DUHS & JSMU
Chemistry
Macromolecules
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For which mechanism the first step involved is the same?
NTS 2016 DUHS & JSMU
Chemistry
Macromolecules
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________ is used as a preservative for life specimens.
NTS 2012
Chemistry
Macromolecules
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Activator of phosphatase enzyme is _________.
PMC Practice 3
Chemistry
Macromolecules
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What is the chemical reaction mechanism by which cells make polymers from monomers?
PMC 2021 Tested
Chemistry
Macromolecules
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In the NaCl crystal, chloride ions present at the face center are distributed in:
PMC Practice 2
Chemistry
Macromolecules
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Disposable cups are made of a polymer ‘polystyrene’. Polystyrene is:
UHS 2019
Chemistry
Macromolecules
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Part of a polymer molecule has the following structure. -CH2 -CH2 -CH2 -CH2 -CH2 -CH2-
NUMS 2016
Chemistry
Macromolecules
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Which of the following fertilizers has the maximum percentage of nitrogen in solid state?
NUMS 2016
Chemistry
Macromolecules
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The alloy Duralumin is composed of ______ of Al.
NTS 2018
Chemistry
Macromolecules
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How many types of polymers are there based on their natures?
PMC 2021 Tested
Chemistry
Macromolecules
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Industrially water gas is converted into methanol by using catalyst:
NUMS 2019 Reconduct
Chemistry
Macromolecules
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A polymer called Bakelite is formed by the reaction of phenol with:
PMC Practice 2
Chemistry
Macromolecules
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Who introduced the concept of macromolecules?
PMC Practice 7
Chemistry
Macromolecules
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The smog having high contents of SO2 is called:
NUMS 2019 Reconduct
Chemistry
Macromolecules
Elimination Tool:
Which is the structure of polyvinyl chloride (polychloroethane)?
UHS 2018
Chemistry
Macromolecules
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The sugar unit in DNA molecule is:
NUMS 2019 Reconduct
Chemistry
Macromolecules
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Common name of Octadecanoic acid is:
NTS 2016 DUHS & JSMU
Chemistry
Acids, Bases and Salts
Macromolecules
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Graphite has a structural similarity with:
PMC Practice 2
Chemistry
Macromolecules
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Chlorine is manufactured commercially by the electrolysis of aqueous sodium chloride (brine). Which other products are made in this process?
NTS 2010
Chemistry
Macromolecules
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The polymer containing acrylonitrile as a monomer is:
PMC 2021 Tested
Chemistry
Macromolecules
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Chloroform is used as the following except:
NUMS 2015
Chemistry
Macromolecules
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The transparent plastic used to make combs and hairbrushes is called:
NTS 2018
Chemistry
Macromolecules
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Bakelite is a polymer of formaldehyde and __________.
NUMS 2018
Chemistry
Macromolecules
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Key Concepts about Macromolecules
The chapter explains the classification of macromolecules into natural and synthetic types. It covers the structure and properties of carbohydrates, proteins, nucleic acids, and lipids, highlighting their biological significance. The chapter also discusses synthetic polymers, their preparation, properties, and uses in industry. Each concept is illustrated with examples, diagrams, and step-by-step explanations. These concepts are highly important for FSC board exams and entry tests like MDCAT, NUMS, AKU, NUST, and ECAT.
Free Entry Test Preparation
Mastery of macromolecules helps students understand biological molecules, predict chemical behavior, and solve numerical and conceptual problems. PLS Academy provides practice questions, solved past papers, and chapter-wise MCQs to help students revise these topics effectively. Regular study of this chapter improves problem-solving skills, conceptual clarity, and exam performance, ensuring students are well-prepared for FSC board exams, competitive entry tests, and NTS exams.
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