Q.65 Chemistry ⭐ 360° Option Elimination Active

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NEET 2023 Chemistry Question 65 Solution

Topic: Chemistry in Everyday Life · Official NTA Booklet Code G5

Question

Some tranquilizers are listed below. Which one from the following belongs to barbiturates?

(1)Veronal
(2)Chlordiazepoxide
(3)Meprobamate
(4)Valium

✓

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)

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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 ↗

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NEET 2023 Chemistry Question 65 Solution

Question

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

Step-by-Step Rigorous Workflow & Mathematical Proof

Definition and Therapeutic Action of Barbiturates

Identification of Veronal as a Barbiturate

Classification of Other Options

360° Option Elimination Engine Key Feature

NTA Trap Alert: Assuming All Tranquilizers Are Barbiturates

Core NEET Syllabus Standard

Ready to attempt under real exam pressure?

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