JEEChemistry

Chemistry in Everyday Life

24 JEE Chemistry previous year questions on Chemistry in Everyday Life — options free on every question; 2 include the answer & explanation free, the rest unlock with PYQ Pass.

Q1 FREE PREVIEW
PYQ
Which one of the following statements is not true?.
aAmpicillin is a natural antibiotic.
bAspirin is both analgesic and antipyretic.
cSulphadiazine is a synthetic antibacterial drug.
dSome disinfectants can be used as antiseptics
✓ Correct answer: a) Ampicillin is a natural antibiotic.
ExplanationAmpicillin is a semi-synthetic antibiotic, meaning it is derived from a natural substance but has been chemically modified to improve its properties.
Q2 FREE PREVIEW
PYQ
Given below are two statements: Statement-I: Noradrenaline is a neurotransmitter. Statement-II: Low level of noradrenaline is not the cause of depression in human. In the light of the above statements, choose the correct answer from the options given below [JEE Main 2023, 24 Jan (Shift 1)]
aStatement-I is correct but Statement-II is incorrect
bStatement-I is incorrect but Statement-II is correct
cBoth Statement-I and Statement-II are correct
dBoth Statement-I and Statement-II are incorrect
✓ Correct answer: a) Statement-I is correct but Statement-II is incorrect
ExplanationNoradrenaline play major role in the 'inner world' of the body by the brain.Low level of Noradrenaline causes depression, lack of concentration.
Q3
PYQ

Statements about Enzyme Inhibitor Drugs are given below:
(A) There are Competitive and Non-competitive inhibitor drugs.
(B) These can bind at the active sites and allosteric sites.
(C) Competitive Drugs are allosteric site blocking drugs.
(D) Non- competitive Drugs are active site blocking drugs.

Choose the correct answer from the options given below:

[JEE Main 2022, 28 Jul (Shift 1)]

a

(A), (D) only

b

(A), (C) only

c

(A), (B) only

d

(A), (B), (C) only

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Q4
PYQ

Arsenic containing medicine used for the treatment of syphilis, is

a

erythromycin

b

ofloxacin

c

tetracycline

d

salvarsan

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Q5
PYQ

Cetyltrimethyl ammonium bromide is a popular

a

anionic detergent

b

cationic detergent

c

non-ionic detergent

d

sweetener

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Q6
PYQ

With respect to drug-enzyme interaction, identify the wrong statement. [JEE Main 2021, 17 Mar (Shift 1)]

a

Competitive inhibitor binds to the enzyme's active site

b

Allosteric inhibitor changes to the enzyme's active site

c

Non-competitive inhibitor binds to the allosteric site

d

Allosteric inhibitor competes with the enzyme's active site

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Q7
PYQ

Given below are two statements :
Statement-I : Morphine is a narcotic analgesis. It helps in relieving pain without producing sleep.
Statement-II : Morphine and its derivatives are obtained from opium poppy.
In the light of the above statements, choose the correct answer from the options given below.

a

Statement I is true but Statement II is false

b

Both Statement I and Statement II are false

c

Both Statement I and Statement II are true

d

Statement I is false but Statement II is true

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Q8
PYQ

Match List-I and with List-II.

List-I List-II

(Class of Chemicals) (Example)

(A) Antifertility drug (i) Meprobamate

(B) Antibiotic (ii) Alitame

(C) Tranquilizer (iii) Norethindrone

(D) Artificial Sweetener (iv) Salvarsan

[JEE Main 2021, 18 Mar (Shift 2)]

a

A→iii; B→iv; C→i; D→ii

b

A→iv; B→iii; C→ii; D→i

c

A→ii; B→iv; C→i; D→iii

d

A→ii; B→iv; C→i; D→iii

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Q9
PYQ

Which of the following chemicals can be added for sweetening of food
items at cooking temperature and does not provides calories?

a

Sucrose

b

Glucose

c

Aspartame

d

Sucralose

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Q10
PYQ

Given below are two statements:

Statement-I : Morphine is a narcotic analgesis. It helps in relieving pain without producing sleep.
Statement-II : Morphine and its derivatives are obtained from opium poppy.
In the light of the above statements, choose the correct answer from the options given below.

[JEE Main 2023, 6 Apr (Shift 2)]

a

Statement I is true but Statement II is false

b

Both Statement I and Statement II are false

c

Both Statement I and Statement II are true

d

Statement I is false but Statement II is true

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Q11
PYQ

The drug used as an antidepressant is

a

Luminol

b

Tofranil

c

Mescaline

d

Sulphadiazine

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Q12
PYQ

Which of the following artificial sweeteners has the highest sweetness value in comparison to cane sugar?

[JEE Main 2023, 31 Jan (Shift 1)]

a

Aspartame

b

Sucralose

c

Alitame

d

Saccharin

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Q13
PYQ

Which of the following compounds are not used as disinfectants?
(A) Chloroxylenol
(B) Bithionol
(C) Veronal
(D) Prontosil
(E) Terpineol

Choose the correct answer from the options given below:

a

\(A , B , E\)

b

\(A , B \)

c

\(B , D , E\)

d

\(C , D \)

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Q14
PYQ

A chemist has 4 samples of artificial sweetener A,B, C and D. To identify these samples, he performed certain experiments and noted the following observations :

(i) \( \mathrm{A} \) and \( \mathrm{D} \) both form blue-violet colour with ninhydrin.

(ii) Lassaigne extract of \( \mathrm{C} \) gives positive \( \mathrm{AgNO}_{3} \) test and negative \( \mathrm{Fe}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]_{3} \) test.

(iii) Lassaigne extract of \( \mathrm{B} \) and \( \mathrm{D} \) gives positive sodium nitroprusside test.

Based on these observations which option is correct ?

a

A : Alitame ; B : Saccharin ; C : Aspartame; D : Sucralose

b

A : Aspartame; B : Alitame ; C : Saccharin ; D : Sucralose

c

A : Aspartame; B : Saccharin ; C : Sucralose ; D : Alitame

d

A : Saccharin ; B : Alitame ; C: Sucralose ; D : Aspartame

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Q15
PYQ

With respect to drug-enzyme interaction, identify the wrong statement.

a

Competitive inhibitor binds to the enzyme's active site

b

Allosteric inhibitor changes to the enzyme's active site

c

Non-competitive inhibitor binds to the allosteric site

d

Allosteric inhibitor competes with the enzyme's active site

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Q16
PYQ

The reaction used for preparation of soap from fat is:

[JEE Main 2023, 10 Apr (Shift 2)]

a

reduction reaction

b

alkaline hydrolysis reaction

c

an addition reaction

d

an oxidation reaction

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Q17
PYQ

In the given reaction scheme, P is a phenyl alkyl ether, Q is an aromatic compound; R and S are the major products.

\(\mathrm{P}\overset{\mathrm{HI}}{\to }\mathrm{Q}\overset{\begin{matrix}(\mathrm{i})\text{ }\mathrm{NaOH} \\ (\mathrm{ii})\text{ }{\mathrm{CO}}_{2}\end{matrix}}{\underset{(\mathrm{iii})\text{ }{\mathrm{H}}_{3}{\mathrm{O}}^{+}}{\to }}\mathrm{R}\overset{(\mathrm{i}){({\mathrm{CH}}_{3}\mathrm{CO})}_{2}\mathrm{O}}{\underset{(\mathrm{ii})\text{ }{\mathrm{H}}_{3}{\mathrm{O}}^{+}}{\to }}\mathrm{S}\)

The correct statement about S is

a

It primarily inhibits noradrenaline degrading enzymes.

b

It inhibits the synthesis of prostaglandin.

c

It is a narcotic drug.

d

It is ortho-acetylbenzoic acid.

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Q18
PYQ

Among the following, the number of tranquilizers is/are

(A) Chloroliazepoxide

(B) Veronal

(C) Valium

(D) Salvarsan

[JEE Main 2023, 1 Feb (Shift 2)]

a

1

b

2

c

3

d

4

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Q19
PYQ

Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R)

Assertion (A): Butylated hydroxyl anisole when added to butter increases its shelf life.

Reason (R): Butylated hydroxyl anisole is more reactive towards oxygen than food.
In the light of the above statements, choose the most appropriate answer from the options given below:

[JEE Main 2023, 25 Jan (Shift 2)]

a

Both \(A\) and \(R\) are correct and \(R\) is the correct explanation of \(A\).

b

\(A\) is correct but \(R\) is not correct.

c

\(A\) is not correct but \(R\) is correct.

d

Both \(A\) and \(R\) are correct but \(R\) is NOT the correct explanation of \(A\).

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Q20
PYQ

The statement/s which are true about antagonists from the following is/are

(A) They bind to the receptor site.
(B) Get transferred inside the cell for their action.
(C) Inhibit the natural communication of the body.
(D) Mimic the natural messenger.

Choose the correct answer from the options given below:

a

B only

b

A, C and D

c

A and B

d

A and C

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Q21
PYQ

The element playing significant role in neuromuscular function and interneuronal transmission is:

[JEE Main 2023, 31 Jan (Shift 2)]

a

\(Be\)

b

\(Ca\)

c

\(Li\)

d

\(Mg\)

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Q22
PYQ

Given below are two statements: One is labelled as Assertion A and the other labelled as Reason R.
Assertion A: Antihistamines do not affect the secretion of acid in stomach.
Reason R: Antiallergic and antacid drugs work on different receptors.
In the light of the above statements, choose the correct answer from the options given below:

a

\(A\text{ is false but }R\text{ is true }\)

b

\(\text{ Both }A\text{ and }R\text{ are true and }R\text{ is the correct explanation of }A\)

c

\(A\text{ is true but }R\text{ is false }\)

d

\(\text{ Both }A\text{ and }R\text{ are true but }R\text{ is not the correct explanation of }A\text{. }\)

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Q23
PYQ

The mechanism of action of "Terfenadine" (Seldane) is :

a

Inhibits the secretion of histamine

b

Helps in the secretion of histamine

c

Activates the histamine receptor

d

Inhibits the action of histamine receptor

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Q24
PYQ

A doctor prescribed the drug Equanil to a patient. The patient was likely to have symptoms of which disease?

[JEE Main 2023, 29 Jan (Shift 2)]

a

Stomach ulcers

b

Hyperacidity

c

Anxiety and stress

d

Depression and hypertension

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