Q.80 Chemistry ⭐ 360° Option Elimination Active

NEET 2026 Chemistry Question 80 Solution

Topic: Biomolecules · Official NTA Booklet Code 50

Question

Match the vitamins in List I with their sources in List II. List I: A. vitamin A; B. vitamin B₁₂; C. vitamin E; D. vitamin K. List II: I. meat; II. sunflower oil; III. green leafy vegetables; IV. carrots. Choose the correct answer from the options given below.

✓

Verified Against NTA Final Answer Key

Option (2) : A-IV, B-I, C-II, D-III

📚 Biomolecules Easy

📋 Given Parameters & Problem Setup

List I (Vitamins) A. vitamin A, B. vitamin B₁₂, C. vitamin E, D. vitamin K

List II (Sources) I. meat, II. sunflower oil, III. green leafy vegetables, IV. carrots

⚡

The 30-Second Exam Hall Shortcut: ⚡ The Carrot & Meat Pair Shortcut

⏱️ Save ~40 seconds

Vitamin A = Carrots (A-IV); Vitamin B₁₂ = Meat (B-I) -> Finishes the question in 5 seconds!

1 A. Vitamin A: Classic dietary source is carrots / fish liver oil -> A-IV.

2 This immediately rules out Options (1) and (4)!

3 B. Vitamin B₁₂: Exclusively found in animal sources (meat, fish, egg, curd; plants cannot synthesize B₁₂) -> B-I.

4 Check Option (2) vs (3): Option (2) has B-I; Option (3) has B-II.

5 Verify C and D: Vitamin E is in vegetable oils (sunflower oil, C-II); Vitamin K is in green leafy vegetables (D-III).

6 Option (2) is 100% verified!

🛡️

Why You Can 100% Trust This Shortcut: NCERT Biomolecules table on vitamins: Canonical dietary sources tabulated verbatim.

📐

Step-by-Step Rigorous Workflow & Mathematical Proof

Step 1

Match Vitamin A (Retinol)

Vitamin A is a fat-soluble vitamin essential for night vision (rhodopsin synthesis). Rich dietary sources include carrots (beta-carotene precursor), fish liver oil, milk, and butter.

\text{Vitamin A} \longrightarrow \text{IV. carrots}

• Match: A -> IV.

Step 2

Match Vitamin B₁₂ (Cyanocobalamin)

Vitamin B₁₂ is a water-soluble coordination complex containing cobalt. It cannot be synthesized by higher plants and is obtained in human diets exclusively through animal foods such as meat, liver, fish, and eggs.

\text{Vitamin B}_{12} \longrightarrow \text{I. meat}

• Match: B -> I.

Step 3

Match Vitamin E (Tocopherol)

Vitamin E is an antioxidant fat-soluble vitamin primarily sourced from vegetable seed oils, including sunflower oil, wheat germ oil, and cotton seed oil.

\text{Vitamin E} \longrightarrow \text{II. sunflower oil}

• Match: C -> II.

Step 4

Match Vitamin K (Phylloquinone)

Vitamin K is responsible for blood clotting (prothrombin synthesis) and is richly abundant in green leafy vegetables like spinach, cabbage, and kale.

\text{Vitamin K} \longrightarrow \text{III. green leafy vegetables}

• Match: D -> III.
• Full Match: A-IV, B-I, C-II, D-III (Option 2).

⭐

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. Assigns sunflower oil to Vitamin A and carrots to Vitamin E.

⚠️

Student Fallacy (Why candidates pick this trap): Random guessing of nutritional sources.

2 B

✓ 100% Correct

Verdict & Scientific Reason:

Exact match with NCERT Biomolecules vitamins table.

💡

Why this is airtight: None; flawless nutritional knowledge.

3 C

✗ Incorrect

Verdict & Scientific Reason:

Incorrect. Falsely assigns sunflower oil to Vitamin B₁₂ (B₁₂ is not in plant oils).

⚠️

Student Fallacy (Why candidates pick this trap): Forgetting that plants do not produce Vitamin B₁₂.

4 D

✗ Incorrect

Verdict & Scientific Reason:

Incorrect. Assigns green leafy vegetables to Vitamin A and carrots to Vitamin E.

⚠️

Student Fallacy (Why candidates pick this trap): Swapping Vitamin A and Vitamin K sources.

⚠️

NTA Trap Alert: Assigning Vitamin B₁₂ to Plant Sources

Vitamin B₁₂ is unique among vitamins: it is synthesized by bacteria and present almost exclusively in animal foods (meat, dairy). It is never found in sunflower oil or pure plant oils!

🛡️ How to avoid the -1 mark: Remember: B₁₂ is strictly from animal sources (Meat, Liver, Eggs).

📖

Core NEET Syllabus Standard

NEET Chemistry Core Syllabus · Biomolecules Standard Benchmark

Core Scientific Principle Tested:

"Vitamin A from carrots, B₁₂ from meat, E from vegetable oils, K from green leaves."

Syllabus Focus: Vitamins - Classification, sources, and deficiency diseases

✓ Core NEET UG Syllabus Anchor Syllabus & Academic Standards ↗

A in Carrots, B₁₂ in Meat, E in Sunflower oil, K in Leafy treat!

Ready to attempt under real exam pressure?

Test your speed and accuracy in the authentic 180-minute timed NTA simulator.

Launch NEET 2026 CBT Test →

← Previous (Q.79) All Chemistry Questions Grid Next (Q.81) →

Spotted a mistake in this solution? Report an error ([email protected])

⚖️ Legal & Fair Dealing Notice: Sourced from publicly released NEET 2026 question papers and NEET answer keys for private study, research, and non-commercial educational practice under Fair Dealing (Section 52(1)(a) of the Indian Copyright Act, 1957). Not affiliated with or endorsed by NTA or NMC.

NEET 2026 Chemistry Question 80 Solution

Question

The 30-Second Exam Hall Shortcut: ⚡ The Carrot & Meat Pair Shortcut

Step-by-Step Rigorous Workflow & Mathematical Proof

Match Vitamin A (Retinol)

Match Vitamin B₁₂ (Cyanocobalamin)

Match Vitamin E (Tocopherol)

Match Vitamin K (Phylloquinone)

360° Option Elimination Engine Key Feature

NTA Trap Alert: Assigning Vitamin B₁₂ to Plant Sources

Core NEET Syllabus Standard

Ready to attempt under real exam pressure?

🔗 Related Questions — Biomolecules

Vitamins B₁₂, D, B₂ and B₆ and Their Respective Deficiency Diseases

Identification of D-Fructose from Canonical Chemical Properties

Enzyme Commission (IUBMB) Classification: Class 2 Transferases

Prosthetic Groups of Enzymes: Haem in Catalase and Peroxidase

Solve 4 NEET Questions a Day — One per Subject