Potassium salts of higher fatty acids

Calcium salts of higher fatty acids

Magnesium salts of higher fatty acids

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JEE • CHEMISTRY • CHEMISTRY IN EVERYDAY LIFE

Chemistry in everyday life practice · Medium

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These sets use single-correct-answer MCQs. They do not cover every JEE Main or JEE Advanced question format and are not full-length mock papers.

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Showing 31-60 of 62 questions

31 Medium

31 of 62

Remembering +4 | -1

The compounds used to fix a dye to the fabric is known as:

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Correct option: A

Mordant

Option A (Mordant) is correct because a mordant is a substance used to fix dyes to fabrics, forming a complex that is insoluble and adheres to the fiber.

32 Medium

32 of 62

Remembering +4 | -1

Which of the following processes is done to make the soap transparent?

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Correct option: B

The soap is dissolved in alcohol and then the alcohol is evaporated out.

Option B (The soap is dissolved in alcohol and then the alcohol is evaporated out) is correct because dissolving soap in alcohol and evaporating the alcohol helps to create a transparent soap.

33 Medium

33 of 62

Understanding +4 | -1

Which of the following statements is incorrect?

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Correct option: C

Bacteria can degrade the detergents containing highly branched chains

Option C (Bacteria can degrade the detergents containing highly branched chains) is correct because branched-chain detergents are actually difficult for bacteria to degrade, leading to pollution.

34 Medium

34 of 62

Remembering +4 | -1

Hard soaps are:

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Correct option: A

Sodium salts of higher fatty acids

Option A (Sodium salts of higher fatty acids) is correct because hard soaps are sodium salts of higher fatty acids, while potassium salts form soft soaps.

35 Medium

35 of 62

Remembering +4 | -1

Cocaine is:

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Correct option: C

Medicine

Option C (Medicine) is correct because Cocaine is used as a local anesthetic and vasoconstrictor, though it is also a dangerous habit-forming drug.

36 Medium

36 of 62

Remembering +4 | -1

Alizarin gives a red colour by mordanting it with the sulphate of a metal. The metal ion involved is:

View answer and explanation

Correct option: C

A{l^{3 + }}

Option C (

A{l^{3 + }}

) is correct because Alizarin forms a red complex when mordanted with aluminum ions (

A{l^{3 + }}

37 Medium

37 of 62

Remembering +4 | -1

Which of the following ceramics possesses good strength,
translucency and very low porosity

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Correct option: A

whiteware

Option A (whiteware) is correct because whiteware ceramics are known for their good strength, translucency, and very low porosity.

38 Medium

38 of 62

Understanding +4 | -1

S-I: Receptors are crucial to body's communication process.

S-II: Receptors are proteins.

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Correct option: A

Both (I) and (II) are ture

Option A is correct because both statements are true: receptors are crucial for the body's communication process, and receptors are indeed proteins.

39 Medium

39 of 62

Understanding +4 | -1

S-I: Sodium-2 dodecyl benzenesulphonate is a detergent.

S-II: Detergents having highly branched chains are biodegradable.

View answer and explanation

Correct option: C

(I) is true but (II) is false

Option C ((I) is true but (II) is false) is correct because sodium dodecyl benzenesulphonate is a detergent, but detergents with highly branched chains are not biodegradable.

40 Medium

40 of 62

Remembering +4 | -1

Among the following, the narrow spectrum antibiotic is:

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Correct option: A

Penicillin G

Option A (Penicillin G) is correct because Penicillin G is a narrow-spectrum antibiotic, effective against a limited range of bacteria, primarily Gram-positive bacteria.

41 Medium

41 of 62

Remembering +4 | -1

The use of artificial sweetener saccharin has been discontinued, as it is

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Correct option: A

Carcinogenic

Option A (Carcinogenic) is correct because saccharin was found to be carcinogenic in some studies, leading to its discontinued use as an artificial sweetener.

42 Medium

42 of 62

Understanding +4 | -1

Assertion: Salvarsan is an antibacterial agent which is toxic to human beings.

Reason: Salvarsan has the presence of Arsenic which is a poison.

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Correct option: A

Both assertion and reason are correct statements, and reason is the correct explanation of the assertion.

Option B is correct. Salvarsan is an antibacterial agent containing arsenic, making it toxic to humans. The presence of arsenic is the reason for its toxicity.

43 Medium

43 of 62

Remembering +4 | -1

Which one of the following compounds is an anti-fertility
drug?

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Correct option: C

Saheli

Option C (Saheli) is correct because Saheli is a well-known anti-fertility drug used as an oral contraceptive.

44 Medium

44 of 62

Remembering +4 | -1

What type of a propellant was used in rocket SLV-3 which was fired by India?

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Correct option: A

Solid propellant

Option A (Solid propellant) is correct because SLV-3 used a solid propellant.

45 Medium

45 of 62

Understanding +4 | -1

Most of the deodorants contain aluminium salts because
they

View answer and explanation

Correct option: B

act as anti-bacterial agents

Option B (act as anti-bacterial agents) is correct because aluminum salts in deodorants inhibit the growth of bacteria, which are responsible for body odor.

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46 Medium

46 of 62

Remembering +4 | -1

A space rocket is propelled by:

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Correct option: D

Mixture of fuel and oxidiser called propellant

Option D (Mixture of fuel and oxidiser called propellant) is correct because space rockets are propelled by the combustion of a fuel and an oxidizer mixture known as a propellant.

47 Medium

47 of 62

Remembering +4 | -1

Which of the following is not used in the preparation of a soap?

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Correct option: D

Benzoic acid

Option D (Benzoic acid) is correct because benzoic acid is an aromatic carboxylic acid, and soaps are typically made from long-chain fatty acids.

48 Medium

48 of 62

Remembering +4 | -1

Excessive nitrate in drinking water can cause

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Correct option: C

Methemoglobinemia

Option C (Methemoglobinemia) is correct because excessive nitrate in drinking water can lead to this condition, also known as blue baby syndrome.

49 Medium

49 of 62

Remembering +4 | -1

Which one is disperse dye?

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Correct option: C

Celliton

Option C (Celliton) is correct because Celliton is a well-known example of a disperse dye used for synthetic fibers.

50 Medium

50 of 62

Remembering +4 | -1

Which of the following is an ingrain dye?

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Correct option: B

Aniline black

Option B (Aniline black) is correct because Aniline black is formed directly within the fabric during the dyeing process, making it an ingrain dye.

51 Medium

51 of 62

Remembering +4 | -1

Which of the following compounds are added to wax for preparation of candles?

[A] Palmitic acid

[B] Stearic acid

[C] Arachidonic acid

[D] Linoleic acid

View answer and explanation

Correct option: A

A

and

B

Option A (

A

and

B

) is correct because palmitic acid and stearic acid are saturated fatty acids commonly added to wax for candle preparation.

52 Medium

52 of 62

Remembering +4 | -1

Baby talcum powders contain

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Correct option: C

Zinc stearate, boric acid

The correct answer is C (Zinc stearate, boric acid) because baby talcum powders typically contain zinc stearate as a lubricant and boric acid as an antiseptic.

53 Medium

53 of 62

Remembering +4 | -1

Cetyl trimethyl ammonium bromide is a popular

View answer and explanation

Correct option: A

Cationic detergent

Option A (Cationic detergent) is correct because cetyl trimethyl ammonium bromide has a positively charged head and is therefore a cationic detergent.

54 Medium

54 of 62

Understanding +4 | -1

In the preparation of a soap, the fatty acid containing less than eight carbon atoms is not used, because the soap obtained:

View answer and explanation

Correct option: C

Does not form an emulsion with the grease

Option C (Does not form an emulsion with the grease) is correct because fatty acids with less than eight carbon atoms are too short to effectively emulsify grease.

55 Medium

55 of 62

Remembering +4 | -1

In basic dyes which of the following group is present?

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Correct option: D

-\mathrm{NH}_2

Option D (

-\mathrm{NH}_2

) is correct because basic dyes contain an amine group (

-\mathrm{NH}_2

) which is responsible for their color and ability to bind to acidic sites on fabrics.

56 Medium

56 of 62

Remembering +4 | -1

Antifertility drug among the following is

View answer and explanation

Correct option: D

Norethindrone

Option D (Norethindrone) is correct because Norethindrone is a synthetic progestin used in oral contraceptives to prevent pregnancy, thus acting as an antifertility drug.

57 Medium

57 of 62

Remembering +4 | -1

Artificial sweetener that contains chlorine is

View answer and explanation

Correct option: A

Sucralose

Option A (Sucralose) is correct because the sucralose molecule contains three chlorine atoms, making it a chlorinated artificial sweetener.

58 Medium

58 of 62

Remembering +4 | -1

Which of the following drugs are bactericidal?
(I) Erythromycin
(II) Ofloxacin
(III) Chloroamphenicol
(IV) Aminoglycosides

View answer and explanation

Correct option: C

II, IV

Correct Answer + Core Reason: Option C (II, IV) is correct because ofloxacin and aminoglycosides are bactericidal drugs that kill bacteria.

59 Medium

59 of 62

Remembering +4 | -1

Which one of the following types of drugs reduces
fever ?

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Correct option: C

Antipyretic

Option C (Antipyretic) is correct because antipyretics are specifically designed to reduce fever.

60 Medium

60 of 62

Remembering +4 | -1

Which of the following is a natural dye?

View answer and explanation

Correct option: B

Alizarin

Option B (Alizarin) is correct because alizarin is a natural dye extracted from the madder plant, while the other options are synthetic dyes.

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