Chemistry in Everyday Life Practice Test

12th Standard Chemistry — Chemistry in Everyday Life: Online Practice Test

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Which of the following is an analgesic?

A.Streptomycin B.Chloromycetin C.Aspirin D.Penicillin

Antiseptics and disinfectants either kill or prevent the growth of microorganisms. Identify which of the following statements is not true.

A.Dilute solutions of boric acid and hydrogen peroxide are strong antiseptics. B.Disinfectants harm the living tissues. C.A 0.2% solution of phenol is an antiseptic while a 1% solution acts as a disinfectant. D.Chlorine and iodine are used as strong disinfectants.

Drugs that bind to the receptor site and inhibit its natural function are called:

A.Antagonists B.Agonists C.Enzymes D.Molecular targets

Aspirin is chemically known as:

A.Acetylsalicylic acid B.Benzoyl salicylic acid C.Chlorobenzoic acid D.Anthranilic acid

Which one of the following structures represents Nylon-6,6 polymer?

A.(figure A)

B.(figure B)

C.(figure C)

D.(figure D)

Natural rubber has which of the following configurations?

A.Alternate cis- and trans-configuration B.Random cis- and trans-configuration C.All cis-configuration D.All trans-configuration

Nylon is an example of a:

A.Polyamide B.Polythene C.Polyester D.Polysaccharide

Terylene is an example of a:

A.Polyamide B.Polythene C.Polyester D.Polysaccharide

Which of the following is the monomer of neoprene?

A.\(CH_2=C(Cl)-CH=CH_2\) B.\(CH_2=C(CH_3)-CH=CH_2\) C.\(CH_2=CH-CH=CH_2\) D.\(CH_2=C(Cl)-C(Cl)=CH_2\)

Q10

Which of the following is a biodegradable polymer?

A.HDPE B.PVC C.Nylon 6 D.PHBV

Q11

Non-stick cookware generally carries a coating of a polymer whose monomer is:

A.Ethane B.Prop-2-enenitrile C.Chloroethene D.Tetrafluoroethene

Q12

Assertion: 2-methyl-1,3-butadiene is the monomer of natural rubber. Reason: Natural rubber is formed through anionic addition polymerization.

A.If both assertion and reason are true and the reason is the correct explanation of the assertion. B.If both assertion and reason are true but the reason is not the correct explanation of the assertion. C.Assertion is true but the reason is false. D.Both assertion and reason are false.

Q13

Which of the following is a copolymer?

A.Orlon B.PVC C.Teflon D.PHBV

Q14

The polymer used in making blankets (artificial wool) is:

A.Polystyrene B.PAN C.Polyester D.Polythene

Q15

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 weak covalent bonds in their polymer chain.

Q16

What is the therapeutic index of a drug defined as?

A.The ratio of the minimum curative dose to the maximum tolerated dose B.The ratio of the maximum tolerated dose to the minimum curative dose C.The product of the maximum tolerated dose and the minimum curative dose D.The difference between the maximum tolerated dose and the minimum curative dose

Q17

The word "drug" is derived from the French word "drogue", which means:

A.Dry herb B.Bitter root C.Healing potion D.Active chemical

Q18

Which of the following organic compounds is classified as a sugar substituent because it is metabolised without the influence of insulin?

A.Aspartame B.Alitame C.Sorbitol D.Saccharin

Q19

Why is common salt (sodium chloride) added to the reaction mixture during the preparation of soap?

A.To act as a catalyst for the saponification reaction B.To decrease the solubility of soap and help precipitate it out C.To adjust the pH of the soap to make it neutral D.To introduce sodium ions as the active cleansing agents

Q20

What is the IUPAC name for the cationic detergent n-hexadecyltrimethyl ammonium chloride?

A.N,N,N-trimethylhexadecan-1-aminium chloride B.Sodium lauryl sulphate C.Pentaerythrityl stearate D.3-hydroxy-2,2-bis(hydroxymethyl)propyl heptanoate

Q21

Which of the following compounds is classified as a non-ionic detergent?

A.Sodium lauryl sulphate B.n-hexadecyltrimethyl ammonium chloride C.Pentaerythrityl stearate D.Sodium dodecylbenzene sulphonate

Q22

What is the IUPAC name of the monomer used to prepare polyacrylonitrile (PAN)?

A.Prop-2-enenitrile B.Chloroethene C.Tetrafluoroethene D.Vinyl chloride

Q23

Which synthetic polymer is commonly used as a wool substitute for making blankets and sweaters?

A.Nylon-6,6 B.Polyacrylonitrile (PAN) C.Bakelite D.Melamine-formaldehyde resin

Q24

Which polymer represents a linear phenol-formaldehyde resin and is widely used in paints?

A.Soft bakelite B.Hard bakelite C.Novolac D.Melamine resin

Q25

Which of the following articles is typically manufactured using hard bakelite?

A.Soft binding glues B.Blankets and sweaters C.Varnishes and paints D.Combs and pens

Q26

Which monomers undergo condensation polymerisation to form melamine formaldehyde resin?

A.Melamine and formaldehyde B.Melamine and acetaldehyde C.Phenol and formaldehyde D.Urea and formaldehyde

Q27

Which elements are specifically mentioned in the textbook as being used as strong disinfectants?

A.Fluorine and bromine B.Chlorine and iodine C.Sodium and potassium D.Nitrogen and oxygen

Q28

Why are synthetic detergents considered superior to soaps for cleansing purposes?

A.They are completely biodegradable and non-polluting B.They can be used effectively in hard water and acidic conditions C.They are formulated from natural glycerides and oils D.They are less soluble in water, making them last longer

Q29

Which of the following is NOT a characteristic of an ideal drug at its therapeutic concentration?

A.Bio-compatible B.Bio-degradable C.Non-toxic D.Irreversible high toxicity

Q30

What is the specific treatment of a disease using chemical compounds or medicine called?

A.Chemotherapy B.Saponification C.Denaturation D.Polymerisation

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About this Chemistry in Everyday Life test

This free online practice test covers Chemistry in Everyday Life from the 12th Standard Chemistry (Samacheer Kalvi) syllabus. Choose the number of questions and an optional time limit, then answer and submit — everything is checked in your browser, with the correct answers and a worked explanation shown at the end. For the full solutions to every question in this set, see the solved MCQs page.

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