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NEET • CHEMISTRY • CHEMISTRY IN EVERYDAY LIFE

Chemistry in everyday life practice · Hard

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1 Hard

1 of 20

Remembering +4 | -1

Hexamethylene tetramine is used as an:

View answer and explanation

Correct option: C

Urinary antiseptic

Option C (Urinary antiseptic) is correct because Hexamethylene tetramine (methenamine) is used as a urinary antiseptic.

2 Hard

2 of 20

Remembering +4 | -1

Which of the following is used as an oxidizer in rocket propellants?

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Correct option: D

Ammonium perchlorate

Option D (Ammonium perchlorate) is correct because ammonium perchlorate is a strong oxidizer commonly used in solid rocket propellants to provide oxygen for combustion.

3 Hard

3 of 20

Understanding +4 | -1

Which of the following forms cationic micelles above certain concentration?

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Correct option: B

Sodium acetate

Option D (Cetyltrimethylammonium bromide) is correct because it is a cationic surfactant that forms cationic micelles above its critical micelle concentration (CMC).

4 Hard

4 of 20

Remembering +4 | -1

The cationic detergent that is used in hair conditioners is

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Correct option: D

cetyltrimethyl ammonium bromide

Option D (cetyltrimethyl ammonium bromide) is correct because cetyltrimethyl ammonium bromide (CTAB) is a cationic surfactant commonly used in hair conditioners.

5 Hard

5 of 20

Remembering +4 | -1

Which of the following is a bactericidal antibiotic ?

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Correct option: A

Ofloxacin

Option A (Ofloxacin) is correct because it is a bactericidal antibiotic, meaning it kills bacteria directly.

6 Hard

6 of 20

Understanding +4 | -1

Assertion:- Calcium salt of fatty acid can be used as soap

Reason:- They -are water soluble.

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Correct option: D

If both assertion & reason are false

Option D (If both assertion & reason are false) is correct because calcium salts of fatty acids are insoluble and thus not suitable as soap.

7 Hard

7 of 20

Remembering +4 | -1

Which one of the following is used as Antihistamine?

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Correct option: C

Diphenhydramine

Option C (Diphenhydramine) is correct because Diphenhydramine is a first-generation antihistamine used to relieve symptoms of allergies.

8 Hard

8 of 20

Understanding +4 | -1

S-I: Transparent soaps are made by dissolving soaps in ethonal.

S-II: Ethanol makes things invisible.

View answer and explanation

Correct option: C

(I) is true but (II) is false

Option C is correct because Statement I is true (transparent soaps are made by dissolving soaps in ethanol), but Statement II is false (ethanol does not make things invisible).

9 Hard

9 of 20

Remembering +4 | -1

Which of the following compounds is not an antacid?

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Correct option: D

Serotonin

Option D (Serotonin) is correct because serotonin is a neurotransmitter that affects mood and other functions, but it is not used as an antacid.

10 Hard

10 of 20

Understanding +4 | -1

The rose odour from an ester is formed by the action of HCOOH on:

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Correct option: C

Geraniol

Option C (Geraniol) is correct because the rose odor from an ester is formed by the action of HCOOH on geraniol.

11 Hard

11 of 20

Remembering +4 | -1

An example of a liquid propellant is:

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Correct option: A

Liquid

{N_2}{O_4} +

kerosene

Option A (Liquid

{N_2}{O_4} +

kerosene) is correct because liquid dinitrogen tetroxide (

N_2O_4

) and kerosene are commonly used as a liquid oxidizer and fuel combination in rocket propulsion.

12 Hard

12 of 20

Understanding +4 | -1

Assertion (A): Non-competitive inhibitors occupy allosteric site so that the substrate cannot attach at active site.

Reason (R): Non-competitive inhibitors change the shape of active site of enzyme after binding at allosteric site.

View answer and explanation

Correct option: A

Both A and R are true and R is the correct explanation of A

Option A is correct because both the assertion and reason are true, and the reason correctly explains why non-competitive inhibitors block substrate attachment.

13 Hard

13 of 20

Remembering +4 | -1

Which of the following is pheromone?

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Correct option: B

Disparlure

Option B (Disparlure) is correct because Disparlure is a pheromone used to attract insects, specifically the gypsy moth.

14 Hard

14 of 20

Understanding +4 | -1

S-I: Chemical messenger gives message to the cell without entering the cell.

S-II: Chemical messenger is received at the binding site of receptor proteins.

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Correct option: A

Both (I) and (II) are ture

Option A is correct because both statements are true: chemical messengers transmit signals without entering the cell and bind to receptor proteins.

15 Hard

15 of 20

Remembering +4 | -1

Iproniazid is used as a/an

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Correct option: B

Tranquilizer

Option B (Tranquilizer) is correct because Iproniazid is a monoamine oxidase inhibitor (MAOI) that was historically used as a tranquilizer and antidepressant.

Explore Other Chapters in CHEMISTRY

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CHEMICAL BONDING & MOLECULAR STRUCTURE 595 MCQs THERMODYNAMICS 583 MCQs STRUCTURE OF ATOM 499 MCQs CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES 429 MCQs Equilibrium 412 MCQs STATES OF MATTER 410 MCQs

16 Hard

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Understanding +4 | -1

Given below are two statements:
Statement I: Aspirin and Paracetamol belong to the class of narcotic analgesics.
Statement II: Morphine and Heroin are non-narcotic analgesics. In the light of the above statements, choose the correct answer from the options given below.

View answer and explanation

Correct option: D

Both Statement I and Statement II are false

Option D is correct because both statements are false: Aspirin and Paracetamol are non-narcotic analgesics, while Morphine and Heroin are narcotic analgesics.

17 Hard

17 of 20

Remembering +4 | -1

Antidepressant drug among the following is

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Correct option: A

Phenelzine

Option A (Phenelzine) is correct because Phenelzine is a monoamine oxidase inhibitor (MAOI) used as an antidepressant drug.

18 Hard

18 of 20

Understanding +4 | -1

S-I: The receptor proteins show selectivity for one chemical messenger over the other.

S-II: Chemical messenger binds to the receptor site and inhibits its natural function.

View answer and explanation

Correct option: C

(I) is true but (II) is false

Option C is correct because Statement I is true (receptor proteins show selectivity), but Statement II is false (chemical messengers typically activate, not inhibit, the receptor).

19 Hard

19 of 20

Remembering +4 | -1

A combination of nitrocellulose and nitroglycerine is a propellant of the type:

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Correct option: C

Double base propellant

Option C (Double base propellant) is correct because a combination of nitrocellulose and nitroglycerine forms a double-base propellant, where both components act as energetic materials.

20 Hard

20 of 20

Remembering +4 | -1

Alum is used by dyers for cloth

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Correct option: D

as mordant

Option D (as mordant) is correct because alum acts as a mordant in dyeing, helping the dye adhere to the cloth fibers.

Revision notes and key takeaways

Review CHEMISTRY IN EVERYDAY LIFE in your textbook or class notes, then use this set to check your understanding.

Key Takeaways

✓ This set contains 20 single-correct-answer MCQs on CHEMISTRY IN EVERYDAY LIFE.
✓ Try each question before opening its answer. Read the explanation where one is available.
✓ Sign in to save submitted answers. Revisit incorrect answers alongside your textbook or class notes.

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