Class 9 Chemistry Kerala Syllabus

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    Class 9 Chemistry Kerala Syllabus. We covered all the Class 9 Chemistry Kerala Syllabus MCQs in this post for free so that you can practice well for the exam.

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    Class 9 Chemistry Kerala Syllabus for Students

    The Class 9 Chemistry syllabus for the Kerala State Board typically includes:

    1. Matter in Our Surroundings

    2. Is Matter Around Us Pure

    • Elements and compounds
    • Mixtures (homogeneous and heterogeneous)
    • Separation techniques

    3. Atoms and Molecules

    • Concept of atoms and molecules
    • Symbols and formulae
    • Atomic and molecular masses

    4. Structure of the Atom

    • Basic structure of the atom
    • Electron, proton, neutron
    • Atomic models

    5. Chemical Reactions

    6. Acids, Bases, and Salts

    • Properties of acids and bases
    • Indicators
    • pH scale
    • Preparation and uses of salts

    7. Metals and Non-Metals

    • Properties and uses of metals and non-metals
    • Reactivity series
    • Corrosion and its prevention

    8. Carbon and its Compounds

    This syllabus covers fundamental concepts and provides a foundation for understanding more complex chemical principles in higher classes.

    Class 9 Chemistry Kerala Syllabus Objective for Students

    The polymer obtained from monomers glycine and e amino caproic acid is:

    (A) Buna-S

    (B) Dextron

    (C) PHBV

    (D) Nylon-2-nylon-6

    Option d – Nylon-2-nylon-6

    Polyacrylamide gel is used in ( Class 9 Chemistry Kerala MCQ )

    (A) Paints

    (B) Electrophoresis

    (C) Raincoats

    (D) Gaskets

    Option b – Electrophoresis

    Bakelite is obtained from phenol by reaction with:

    (A) Ethanal

    (B) Methanol

    (C) Methanal

    (D) Acetone

    Option c – Methanal

    SBR is obtained from 75 parts of butadiene and 25 parts of styrene subjected to addition polymerization by the action of ( Class 9 Chemistry Kerala MCQ )

    (A) Hydrogen

    (B) Sulphur

    (C) Lithium

    (D) Sodium

    Option d – Sodium

    Chloroprene polymerizes rapidly in the presence of:

    (A) Hydrogen

    (B) Oxygen

    (C) Helium

    (D) Neon

    Option b – Oxygen

    Vulcanization of neoprene takes place in the presence of ( Class 9 Chemistry Kerala MCQ )

    (A) Magnesium oxide

    (B) Tritium oxide

    (C) Vanadium oxide

    (D) Polonium oxide

    Option a – Magnesium oxide

    The molecular formula of cellulose is:

    (A) Cell-OH

    (B) Cell-OR

    (C) Cell-OAr

    (D) Cell-SR

    Option a – Cell-OH

    Cellulose xanthate, when mixed with dilute NaOH, gives ( Class 9 Chemistry Kerala MCQ )

    (A) Viscose

    (B) Acetate

    (C) Tartarate

    (D) Carboxylate

    Option a – Viscose

    PHBV is a:

    (A) Polyether polymer

    (B) Polyester polymer

    (C) Polyamide polymer

    (D) Polyhydroxyl polymer

    Option b – Polyester polymer

    Which of the following is a natural polymer? ( Class 9 Chemistry Kerala MCQ )

    (A) poly (Butadiene-acrylonitrile)

    (B) cis-1,4-polyisoprene

    (C) poly (Butadiene-styrene)

    (D) polybutadiene

    Option b – cis-1,4-polyisoprene

    The reaction between benzaldehyde and acetophenone in the presence of dilute NaOH is known as:

    (A) Cross Aldol condensation

    (B) Aldol condensation

    (C) Cannizzaro’s reaction

    (D) Cross Cannizzaro’s reaction

    Option a – Cross Aldol condensation

    The mixture which shows positive deviation from Raoult’s law is ( Class 9 Chemistry Kerala MCQ )

    (A) Chloroethane + Bromoethane

    (B) Ethanol + Acetone

    (C) Benzene + Toluene

    (D) Acetone + Chloroform

    Option b – Ethanol + Acetone

    Which of the following sets of molecules will have zero dipole moment?

    (A) Boron trifluoride, beryllium difluoride, carbon dioxide, 1,4-dichlorobenzene

    (B) Ammonia, beryllium difluoride, water, 1,4 dichlorobenzene

    (C) Boron trifluoride, hydrogen fluoride, carbon dioxide, 1,3-dichlorobenzene

    (D) Nitrogen trifluoride, beryllium difluoride, water, 1,3-dichlorobenzene

    Option a – Boron trifluoride, beryllium difluoride, carbon dioxide, 1,4-dichlorobenzene

    Paper chromatography is an example of ( Class 9 Chemistry Kerala MCQ )

    (A) Column chromatography

    (B) Adsorption chromatography

    (C) Partition chromatography

    (D) Thin-layer chromatography

    Option c – Partition chromatography

    Chemically treated natural polymers are:

    (A) Synthetic polymer

    (B) Semi-synthetic polymer

    (C) Fibres

    (D) Thermosetting polymer

    Option b – Semi-synthetic polymer

    Polymers obtained in the laboratory by polymerization of simple chemicals are ( Class 9 Chemistry Kerala MCQ )

    (A) Elimination polymer

    (B) Natural polymer

    (C) Synthetic polymer

    (D) Semisynthetic polymer

    Option c – Synthetic polymer

    Thermosetting polymers are:

    (A) Animal polymer

    (B) Linear polymer

    (C) Network polymer

    (D) Branched polymer

    Option c – Network polymer

    The polymerization process complete with the formation of a dimer, trimer, etc. by condensation is ( Class 9 Chemistry Kerala MCQ )

    (A) Condensation polymers

    (B) Addition polymers

    (C) Chain growth polymerization

    (D) Step growth polymerization

    Option d – Step growth polymerization

    The polymers which have two or more types of repeating units are called:

    (A) Copolymer

    (B) Homopolymer

    (C) Addition polymers

    (D) Condensation polymers

    Option a – Copolymer

    The synthetic polymers that are not affected by microbes are called ( Class 9 Chemistry Kerala MCQ )

    (A) Biodegradable polymers

    (B) Non-biodegradable polymers

    (C) PHBV

    (D) Nylon-2-nylon-6

    Option b – Non-biodegradable polymers

    Select the initiator that generates free radicals:

    (A) Acetyl peroxide

    (B) Methyl alcohol

    (C) Isopropyl chloride

    (D) Isopropyl amine

    Option a – Acetyl peroxide

    The intermediate formed during chain growth polymerization is ( Class 9 Chemistry Kerala MCQ )

    (A) Carbanion

    (B) Carbocation

    (C) Free radical

    (D) Either ‘A’ or ‘B’

    Option c – Free radical

    The functionality of polymer depends upon:

    (A) Type of polymer

    (B) Mass of polymer

    (C) Size of polymer

    (D) No. of bonding sites in polymer

    Option a – Type of polymer

    Incorrect statement about branched chain polymers is ( Class 9 Chemistry Kerala MCQ )

    (A) They have low density and melting point.

    (B) They contain continuous chains.

    (C) Their molecules are irregularly packed.

    (D) They have branched side chains of different lengths.

    Option b – They contain continuous chains

    The polymer chains form fibers by:

    (A) Cooling

    (B) Chemical treatment

    (C) Stretched by external force

    (D) Hydrogen bonding

    Option c – Stretched by external force

    Polymers having intermolecular attractive forces between elastomers and fibers are ( Class 9 Chemistry Kerala MCQ )

    (A) Synthetic polymers

    (B) Plant polymers

    (C) Thermoplastic polymers

    (D) Thermosetting polymers

    Option c – Thermoplastic polymers

    The polymers which do not become soft on heating and cannot be remolded or recycled are:

    (A) Fibers

    (B) Elastomers

    (C) Thermoplastic polymers

    (D) Thermosetting polymers

    Option d – Thermosetting polymers

    Polymers having a network or cross-linked chain polymers through strong covalent bonds are ( Class 9 Chemistry Kerala MCQ )

    (A) Polypropylene

    (B) Teflon

    (C) Melamine

    (D) Terylene

    Option c – Melamine

    The molecular mass of an addition polymer is:

    (A) Very low

    (B) Equal to monomer

    (C) Double the mass of the monomer

    (D) Equal to an integral multiple of monomer

    Option d – Equal to an integral multiple of monomer

    Linear polymers have not ( Class 9 Chemistry Kerala MCQ )

    (A) Low melting point

    (B) High density

    (C) High tensile strength

    (D) Close-packed molecules

    Option a – Low melting point

    The process in which monomeric units are added successively to form a polymer is called:

    (A) Addition-elimination polymer

    (B) Condensation polymerization

    (C) Chain growth polymerization

    (D) Step growth polymerization

    Option c – Chain growth polymerization

    Polymers that have only one type of repeating unit are called ( Class 9 Chemistry Kerala MCQ )

    (A) Heteropolymer

    (B) Homopolymer

    (C) Addition polymers

    (D) Condensation polymer

    Option b – Homopolymer

    Polymers obtained by using different monomers are called:

    (A) Animal polymers

    (B) Plant polymers

    (C) Heteropolymers

    (D) Homopolymers

    Option c – Heteropolymers

    Biodegradable polymers ( Class 9 Chemistry Kerala MCQ )

    (A) Have only ester linkage

    (B) Addition polymers

    (C) Co-polymers

    (D) Ether linkage

    Option c – Co-polymers

    Gutta Percha is:

    (A) cis-1,4-polyisoprene

    (B) trans-1,4-polyisoprene

    (C) trans-1,2-polyisoprene

    (D) cis-1,2-polyisoprene

    Option b – trans-1,4-polyisoprene

    Nylon-6,6 has a high molecular mass range of ( Class 9 Chemistry Kerala MCQ )

    (A) 12,000 u to 40,000 u

    (B) 10,000 u to 50,000 u

    (C) 12,000 u to 50,000 u

    (D) 10,000 u to 48,000 u

    Option c – 12,000 u to 50,000 u

    In the chain propagation step of free radical polymerization:

    (A) Polymer is formed

    (B) Decarboxylation of fatty acid

    (C) Phenyl free radical is formed

    (D) Larger free radical is formed

    Option d – Larger free radical is formed

    The molecular mass of natural rubber falls within the range of:

    (A) 1,30,000 u to 3,40,000 u

    (B) 1,35,000 u to 3,00,000 u

    (C) 504 u to 100 u

    (D) 50,000 u to 1,50,000 u

    Option a – 1,30,000 u to 3,40,000 u

    Artificial wool and blankets are obtained from:

    (A) Acrilan

    (B) PAN

    (C) Orlon

    (D) Either A, B, C

    Option d – Either A, B, C

    Vulcanized rubber contains cross-linking chains of:

    (A) Styrene

    (B) trans-1,4-polypropene

    (C) cis-1,4-polyisopropene

    (D) trans-1,4-polyisopropene

    Option c – cis-1,4-polyisopropene

    LDP is a poor conductor of electricity with a melting point of:

    (A) 112°C

    (B) 111°C

    (C) 110°C

    (D) 210°C

    Option c – 110°C

    The catalyst used in the preparation of HDP is:

    (A) Ziegler-Natta

    (B) Grignard’s reagent

    (C) Reimer-Tieman

    (D) Stephen

    Option a – Ziegler-Natta

    Polymers used in non-stick cookware and gaskets are:

    (A) Orlon

    (B) Teflon

    (C) Nylon-6

    (D) Bakelite

    Option b – Teflon

    Acrylonitrile on polymerization gives:

    (A) Orlon

    (B) Terylene

    (C) Teflon

    (D) Neoprene

    Option a – Orlon

    Natural rubber is which type of polymer?

    (A) Addition

    (B) Coordination

    (C) Condensation

    (D) Substitution

    Option a – Addition

    Balloons, tires, Surgeon’s gloves, and garden hoses are examples of:

    (A) Bakelite

    (B) Urea-formaldehyde

    (C) Rubber

    (D) Urea-melamine polymer

    Option c – Rubber

    Latex obtained from rubber trees is in the form of:

    (A) Aerosol

    (B) Coarse suspension

    (C) True solution

    (D) Colloidal suspension

    Option d – Colloidal suspension

    Heating rubber with sulfur powder in the presence of zinc butyl xanthate at 150°C is called:

    (A) Oxidation

    (B) Galvanization

    (C) Sulphonation

    (D) Vulcanization

    Option d – Vulcanization

    The amount of hydrocarbon present in the Havea tree is:

    (A) Very high (35%)

    (B) Very low (0.5%)

    (C) 5.5%

    (D) 12.5%

    Option a – Very high (35%)

    Which of the following is obtained by the polymerization of ethylene under high pressure (1000-2000 atm) and temperature (350-570 K) in the presence of peroxide?

    (A) Low-density polythene

    (B) High-density polythene

    (C) PAN

    (D) Bura-N

    Option a – Low-density polythene

    The raw material used in the preparation of LDP is:

    (A) Ethylene

    (B) Ethyl chloride

    (C) Ethylamine

    (D) Ethanol

    Option a – Ethylene

    Which of the following bonds is very difficult to break and remains unaffected by corrosive alkali, organic solvents?

    (A) C-F

    (B) Na – Cl

    (C) K – Br

    (D) K – OH

    Option a – C-F

    A cyclic ester formed by the intramolecular reaction of -OH group and -COOH group is called:

    (A) Lactone

    (B) Lactam

    (C) Acetal

    (D) Ketol

    Option a – Lactone

    The polymer used for making tyre cords, fabrics, and ropes is:

    (A) Nylon 6

    (B) Melamine

    (C) Bakelite

    (D) Teflon

    Option a – Nylon 6

    Polyethylene terephthalate (PET) is a polymer of:

    (A) Polyamide

    (B) Polyester

    (C) Polyether

    (D) Polyhalide

    Option b – Polyester

    Telephone instrument is obtained from:

    (A) Animal polymer

    (B) Plant polymer

    (C) Bakelite

    (D) Elastomers

    Option c – Bakelite

    The raw material used in the preparation of nylon-6,6 is:

    (A) Adipic acid and ethanol

    (B) Adipic acid and ethane1,2-diol

    (C) Adipic acid and hexamethylene diamine

    (D) Hexamethylene diamine and vinyl cyanide

    Option c – Adipic acid and hexamethylene diamine

    Nylon is an example of:

    (A) Polyamide

    (B) Polysaccharide

    (C) Polythene

    (D) Polyester

    Option a – Polyamide

    Biodegradable polymers are used in:

    (A) Drug release materials

    (B) Implants

    (C) Orthopedic devices

    (D) All of the above (A, B, and C)

    Option d – All of the above (A, B, and C)

    Buna-N polymer is obtained by reacting But-1,3 diene and:

    (A) Vinyl cyanide

    (B) Vinyl chloride

    (C) Vinyl alcohol

    (D) Vinyl bromide

    Option a – Vinyl cyanide

    A three-dimensional cross-linked network solid having links at two ortho and one para position is called:

    (A) Bakelite

    (B) Orlon

    (C) PVC

    (D) PAN

    Option a – Bakelite

    The reaction of Melamine + Methanal to form Melamine formaldehyde resin is an example of:

    (A) Addition-elimination polymerization

    (B) Condensation polymerization

    (C) Elimination polymerization

    (D) Rearrangement polymerization

    Option b – Condensation polymerization

    Buna-S is a polymer of:

    (A) Styrene and methanal

    (B) Styrene and but-1,2-diene

    (C) Styrene and but-1,3-diene

    (D) But-1,3-diene and vinyl cyanide

    Option c – Styrene and but-1,3-diene

    Cellulose pulp wood is treated with conc. NaOH to give:

    (A) Alkali cellulose

    (B) Cellulose xanthate

    (C) Viscose rayon

    (D) Acetate rayon

    Option a – Alkali cellulose

    Which of the following is a natural polymer?

    (A) Poly(butadiene-acrylonitrile)

    (B) cis-1,4-polyisoprene

    (C) Poly(butadiene-styrene)

    (D) Polybutadiene

    Option b – cis-1,4-polyisoprene

    The biodegradable polymer is:

    (A) Nylon-2-nylon-6

    (B) Nylon-6

    (C) Buna-S

    (D) Nylon-6,6

    Option a – Nylon-2-nylon-6

    Regarding cross-linked or network polymers, which of the following statements is incorrect?

    (A) Examples are bakelite and melamine

    (B) They are formed from bi-and tri-functional monomers.

    (C) They contain covalent bonds between various linear polymer chains.

    (D) They contain strong covalent bonds in their polymer chains.

    Option d – They contain strong covalent bonds in their polymer chains

    Polycarbonate is a polymer of:

    (A) Ethylene glycol + phthalic acid

    (B) Butadiene + acrylonitrile

    (C) Urea + methanal

    (D) Bisphenol + Phosgene

    Option d – Bisphenol + Phosgene

    Nylon is an example of:

    (A) Polyester

    (B) Polysaccharide

    (C) Polyamide

    (D) Polythene

    Option c – Polyamide

    Which one of the following is not a condensation polymer?

    (A) Melamine

    (B) Glyptal

    (C) Dacron

    (D) Neoprene

    Option d – Neoprene

    Which of the following statements is false?

    (A) Artificial silk is derived from cellulose.

    (B) Nylon-66 is an example of an elastomer.

    (C) The repeat unit in natural rubber is isoprene.

    (D) Both starch and cellulose are polymers of glucose.

    Option b – Nylon-66 is an example of an elastomer

    Biodegradable polymer that can be produced from glycine and aminocaproic acid is:

    (A) Nylon-2-nylon-6

    (B) PHBV

    (C) Buna-N

    (D) Nylon-6,6

    Option a – Nylon-2-nylon-6

    Caprolactam is used for the manufacture of:

    (A) Nylon-6

    (B) Teflon

    (C) Terylene

    (D) Nylon-6,6

    Option a – Nylon-6

    Natural rubber has:

    (A) All trans-configuration

    (B) Alternate cis-and trans-configuration

    (C) Random cis- and trans-configuration

    (D) All cis-configuration

    Option d – All cis-configuration

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