🧪 Chemistry Moderate Frequency

NEET Chemistry in Everyday Life Previous Year Questions with Solutions

Complete repository of official NTA NEET questions for Chemistry in Everyday Life from 2020 to 2026. Every question includes 30-second elimination tricks, step-by-step NCERT solutions, option-by-option traps, and official answer keys.

3 Questions 3 Exam Years (2023, 2021, 2020) 3 Easy · 0 Medium · 0 Challenging

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NEET 2023 · Q65 Easy Classification of Barbiturates (Veronal)

Dedicated Page ↗

Official NEET 2023 Question 65 - Chemistry in Everyday Life

1 Veronal ✓ Key

2 Chlordiazepoxide

3 Meprobamate

4 Valium

💡 Verified Solution & 30-Second Hack

✓

Verified Against NTA Final Answer Key

Option (1) : Veronal

📚 Chemistry in Everyday Life Easy

📋 Given Parameters & Problem Setup

Drug class Tranquilizers

Target subclass Barbiturates (derivatives of barbituric acid)

⚡

The 30-Second Exam Hall Shortcut: ⚡ Barbiturate Suffix & Example Hack: Veronal, Luminal, Seconal

⏱️ Save ~20 seconds

Barbiturates are hypnotic sleep-inducing tranquilizers: Veronal, Amytal, Nembutal, Luminal, Seconal! Valium is diazepam, while Chlordiazepoxide and Meprobamate are mild tranquilizers. Option (1) in 5 seconds!

1 Recall the NCERT classification of tranquilizers:

2 - Barbiturates (derivatives of barbituric acid): Veronal, Amytal, Nembutal, Luminal, Seconal.

3 - Benzodiazepines / Non-barbiturates: Valium (diazepam), Chlordiazepoxide.

4 - Carbamates: Meprobamate (mild tranquilizer for tension).

5 Identify Veronal: Veronal (5,5-diethylbarbituric acid) is the classic barbiturate drug.

6 Select Option (1) Veronal directly!

🛡️

Why You Can 100% Trust This Shortcut: Medicinal Chemistry · Tranquilizer Classes (Derivatives of barbituric acid such as veronal, amytal, nembutal, luminal and seconal constitute an important class of tranquilizers known as barbiturates).

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Step-by-Step Rigorous Workflow & Mathematical Proof

Step 1

Definition and Therapeutic Action of Barbiturates

Barbiturates are a class of central nervous system (CNS) depressant drugs derived from barbituric acid. They act as hypnotic (sleep-inducing) agents and tranquilizers by potentiating GABA neurotransmission, reducing anxiety and inducing sleep.

\text{Barbituric Acid Derivatives} \longrightarrow \text{Hypnotic Tranquilizers (Barbiturates)}

Step 2

Identification of Veronal as a Barbiturate

Veronal is the brand name for barbital (5,5-diethylbarbituric acid), synthesized from urea and diethyl malonate. It is the founding member of the barbiturate pharmaceutical class:

\text{Veronal} = \text{5,5-Diethylbarbituric acid} \quad (\text{Barbiturate})

Step 3

Classification of Other Options

Categorizing the remaining tranquilizers listed in the options according to NCERT:

\begin{aligned} \text{Chlordiazepoxide} &: \text{Benzodiazepine derivative (mild tranquilizer for relieving tension)} \\[4pt] \text{Meprobamate} &: \text{Dicarbamate tranquilizer (used in controlling depression and tension)} \\[4pt] \text{Valium (Diazepam)} &: \text{Benzodiazepine derivative (widely used non-barbiturate tranquilizer)} \end{aligned}

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360° Option Elimination Engine Key Feature

Diagnose every choice: Know exactly why the right option works and why distractors fail.

4-Option Deep Scan

1 (1)

✓ 100% Correct

Verdict & Scientific Reason:

Accurate: Veronal is a classic barbiturate derived from barbituric acid.

💡

Why this is airtight: None. Candidate recalled the barbiturate drug family correctly.

2 (2)

✗ Incorrect

Verdict & Scientific Reason:

A mild tranquilizer belonging to the benzodiazepine class, not a barbiturate.

⚠️

Student Fallacy (Why candidates pick this trap): Candidate knew it was a tranquilizer but confused its structural class.

3 (3)

✗ Incorrect

Verdict & Scientific Reason:

A carbamate tranquilizer used for tension relief, not a barbiturate.

⚠️

Student Fallacy (Why candidates pick this trap): Candidate confused carbamates with barbiturates.

4 (4)

✗ Incorrect

Verdict & Scientific Reason:

Valium is diazepam, a benzodiazepine tranquilizer, not a barbiturate.

⚠️

Student Fallacy (Why candidates pick this trap): Candidate confused benzodiazepines with barbiturates.

⚠️

NTA Trap Alert: Assuming All Tranquilizers Are Barbiturates

All four options (Veronal, Chlordiazepoxide, Meprobamate, Valium) are tranquilizers, but they belong to different chemical families! Only Veronal is a derivative of barbituric acid.

🛡️ How to avoid the -1 mark: Mnemonic for Barbiturates: Remember the "-al" group: Veron-al, Lumin-al, Secon-al, Amyt-al, Nembut-al.

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Core NEET Syllabus Standard

National Eligibility cum Entrance Test (NEET UG) · Chemistry in Everyday Life Standard Benchmark

Core Scientific Principle Tested:

"Derivatives of barbituric acid viz., veronal, amytal, nembutal, luminal and seconal constitute barbiturates."

Syllabus Focus: Chemicals in Medicines – Tranquilizers

Preserved in Rationalized Curriculum Syllabus & Academic Standards ↗

NEET 2021 · Q59 Easy Classification of Analgesics: Narcotic vs. Non-Narcotic Drugs

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Official NEET 2021 Question 59 - Chemistry in Everyday Life

1 Both Statement I and Statement II are true.

2 Both Statement I and Statement II are false. ✓ Key

3 Statement I is correct but Statement II is false.

4 Statement is incorrect but Statement II is true.

💡 Verified Solution & 30-Second Hack

✓

Verified Against NTA Final Answer Key

Option (2) : Both Statement I and Statement II are false.

📚 Chemistry in Everyday Life Easy

📋 Given Parameters & Problem Setup

Statement I Aspirin and Paracetamol belong to the class of narcotic analgesics.

Statement II Morphine and Heroin are non-narcotic analgesics.

⚡

The 30-Second Exam Hall Shortcut: ⚡ Swapped Classes: Both Statements are False!

⏱️ Save ~20 seconds

Aspirin and paracetamol are non-addictive over-the-counter painkillers $\implies$ NON-NARCOTIC analgesics! Morphine and heroin are addictive opium alkaloids that induce sleep and stupor $\implies$ NARCOTIC analgesics! The question has inverted both definitions: Statement I is false and Statement II is false! Match Option (2)!

1 Check Statement I: Aspirin and Paracetamol are non-narcotic analgesics (not narcotic) -> Statement I is FALSE.

2 Check Statement II: Morphine and Heroin are narcotic analgesics (not non-narcotic) -> Statement II is FALSE.

3 Both statements are false.

4 Match Option (2).

🛡️

Why You Can 100% Trust This Shortcut: Canonical NCERT Chemistry in Everyday Life pharmaceutical classifications.

📐

Step-by-Step Rigorous Workflow & Mathematical Proof

Step 1

NCERT Classification of Analgesics

Analgesics are neurological active drugs that relieve pain without causing impairment of consciousness, mental confusion, incoordination, or paralysis. NCERT categorizes analgesics into two distinct classes: 1. Non-narcotic (non-addictive) analgesics 2. Narcotic analgesics

Step 2

Evaluating Statement I: Aspirin and Paracetamol

Aspirin (acetylsalicylic acid) and paracetamol (4-acetamidophenol) are non-addictive antipyretics and analgesics that inhibit prostaglandin synthesis. They belong to the class of non-narcotic analgesics. Statement I asserts they are "narcotic analgesics", which is completely false.

Step 3

Evaluating Statement II: Morphine and Heroin

Morphine and its diacetyl derivative (heroin), along with codeine, are opiates that relieve severe pain and produce sleep/stupor. In poisonous doses, they produce stupor, coma, convulsions, and ultimate death, and are highly habit-forming. They are narcotic analgesics. Statement II asserts they are "non-narcotic analgesics", which is completely false.

Step 4

Conclusion

Both Statement I and Statement II are false, corresponding uniquely to Option (2).

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360° Option Elimination Engine Key Feature

Diagnose every choice: Know exactly why the right option works and why distractors fail.

4-Option Deep Scan

1 1

✗ Incorrect

Verdict & Scientific Reason:

Both definitions have been cross-swapped.

⚠️

Student Fallacy (Why candidates pick this trap): Assuming both statements are textbook facts without reading the swapped categories.

2 2

✓ 100% Correct

Verdict & Scientific Reason:

Both statements are factually false because their classes have been directly inverted.

💡

Why this is airtight: None; rigorous pharmaceutical pharmacology knowledge.

3 3

✗ Incorrect

Verdict & Scientific Reason:

Statement I is false (aspirin is non-narcotic).

⚠️

Student Fallacy (Why candidates pick this trap): Misclassifying aspirin as a narcotic.

4 4

✗ Incorrect

Verdict & Scientific Reason:

Statement II is false (morphine is narcotic).

⚠️

Student Fallacy (Why candidates pick this trap): Misclassifying morphine as non-narcotic.

⚠️

NTA Trap Alert: Inverted Category Matching Trap

Examiners frequently invert parallel definitions (swapping narcotic and non-narcotic). Students who read quickly may recognize all four drug names from the chapter and mark "Both are true" (Option 1).

🛡️ How to avoid the -1 mark: Cross-check each word: Aspirin = Non-narcotic. Morphine = Narcotic. Both statements swapped

\implies

Both are false.

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Core NEET Syllabus Standard

NCERT Chemistry · Chemistry in Everyday Life Standard Benchmark

Core Scientific Principle Tested:

"Aspirin and paracetamol are non-narcotic analgesics, whereas morphine and heroin are narcotic analgesics."

Syllabus Focus: Chemicals in Medicines (Analgesics)

✓ Core NEET UG Syllabus Anchor Syllabus & Academic Standards ↗

NEET 2020 · Q113 Easy Classification of Synthetic Detergents: Cationic, Anionic & Non-ionic

Dedicated Page ↗

Official NEET 2020 Question 113 - Chemistry in Everyday Life

1 Sodium lauryl sulphate

2 Sodium stearate

3 Cetyltrimethyl ammonium bromide ✓ Key

4 Sodium dodecylbenzene sulphonate

💡 Verified Solution & 30-Second Hack

✓

Verified Against NTA Final Answer Key

Option (3) : Cetyltrimethyl ammonium bromide

📚 Chemistry in Everyday Life Easy

📋 Given Parameters & Problem Setup

Surfactant Class Cationic detergent

Candidate Compounds Sodium lauryl sulphate, Sodium stearate, Cetyltrimethyl ammonium bromide, Sodium dodecylbenzene sulphonate

⚡

The 30-Second Exam Hall Shortcut: ⚡ "Cationic Detergent = Quaternary Ammonium Salt (Cetyltrimethyl Ammonium Bromide)!"

⏱️ 20 seconds

Cationic detergents are quaternary ammonium salts of amines with acetates, chlorides, or bromides as anions. The long hydrocarbon chain is on the CATION! Cetyltrimethylammonium bromide has germicidal properties and is used in hair conditioners. Sodium lauryl sulphate and Sodium dodecylbenzene sulphonate are ANIONIC detergents; Sodium stearate is a SOAP. Mark Option (3) in 5 seconds!

1 Cationic detergent: Cetyltrimethyl ammonium bromide (quaternary ammonium cation).

2 Anionic detergents: Sodium lauryl sulphate, Sodium dodecylbenzene sulphonate.

3 Soap: Sodium stearate.

4 Non-ionic detergent: Polyethylene glycol stearate.

5 Select Option (3) Cetyltrimethyl ammonium bromide.

🛡️

Why You Can 100% Trust This Shortcut: NCERT Chemistry · Chemistry in Everyday Life (Cleansing Agents: Synthetic Detergents)

📐

Step-by-Step Rigorous Workflow & Mathematical Proof

Step 1

Classify Synthetic Detergents

Synthetic detergents are classified into three major categories based on the ionic nature of their hydrophilic head group: 1. Anionic detergents 2. Cationic detergents 3. Non-ionic detergents.

Step 2

Evaluate Cationic Detergents

Cationic detergents are quaternary ammonium salts of amines with chlorides, bromides, or acetates as anions. The cationic part possesses a long hydrocarbon chain and a positive charge on the nitrogen atom: $\text{Cetyltrimethylammonium bromide: } [\text{CH}_3(\text{CH}_2)_{15}-\text{N}^+(\text{CH}_3)_3]\text{Br}^-$ Because the lipophilic cleaning activity resides in the cation, it is a cationic detergent. They possess germicidal properties and are commonly used in hair conditioners.

Step 3

Evaluate Other Candidate Options

- Sodium lauryl sulphate ( $\text{CH}_3(\text{CH}_2)_{11}\text{OSO}_3^-\text{Na}^+$ ): Anionic detergent. - Sodium dodecylbenzene sulphonate ( $\text{CH}_3(\text{CH}_2)_{11}\text{C}_6\text{H}_4\text{SO}_3^-\text{Na}^+$ ): Anionic detergent. - Sodium stearate ( $\text{C}_{17}\text{H}_{35}\text{COONa}$ ): Saponified traditional soap, not a synthetic detergent.

Step 4

Conclude Option 3

Cetyltrimethyl ammonium bromide is uniquely the cationic detergent.

⭐

360° Option Elimination Engine Key Feature

Diagnose every choice: Know exactly why the right option works and why distractors fail.

4-Option Deep Scan

1 A

✗ Incorrect

Verdict & Scientific Reason:

Incorrect; sodium lauryl sulphate is an ANIONIC detergent because its large organic part is an anion ( $\text{ROSO}_3^-$ ).

⚠️

Student Fallacy (Why candidates pick this trap): Confusing anionic sulfate detergent with cationic detergent.

2 B

✗ Incorrect

Verdict & Scientific Reason:

Incorrect; sodium stearate is a sodium salt of a fatty acid (traditional soap), not a synthetic detergent.

⚠️

Student Fallacy (Why candidates pick this trap): Confusing soaps with synthetic detergents.

3 C

✓ 100% Correct

Verdict & Scientific Reason:

Factually exact; quaternary ammonium cation bearing long cetyl chain makes it a classic cationic detergent.

💡

Why this is airtight: None; direct textbook example.

4 D

✗ Incorrect

Verdict & Scientific Reason:

Incorrect; this is the most common ANIONIC detergent used in household laundry powders.

⚠️

Student Fallacy (Why candidates pick this trap): Assuming common detergent is cationic.

⚠️

NTA Trap Alert: Quaternary Ammonium = Cationic Detergent

Any name containing "...ammonium chloride/bromide" is a quaternary ammonium cation -> CATIONIC DETERGENT! Names ending in "...sulphonate" or "...sulphate" with Sodium are ANIONIC.

🛡️ How to avoid the -1 mark: Look for "Ammonium": Cetyltrimethyl AMMONIUM bromide = Cationic detergent!

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