Question:
Which of the following statement is false?
Which of the following statement is false?
Show Hint
Chlorophyll → Mg\(^{2+}\), Vitamin B\(_{12}\) → Co\(^{3+}\).
Updated On: Apr 16, 2026
- Chlorophyll is responsible for synthesis of carbohydrates
- Haemoglobin forms oxyhaemoglobin in presence of oxygen
- Acetyl salicylic acid is aspirin
- Vitamin B\(_{12}\) contains Mg\(^{2+}\) ion
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Concept:
Important biological molecules and their metal ion components.
Step 1: Check each statement.
• (A) Chlorophyll contains Mg\(^{2+}\) and is responsible for photosynthesis (carbohydrate synthesis) → True.
• (B) Haemoglobin (Fe\(^{2+}\)) binds oxygen reversibly to form oxyhaemoglobin → True.
• (C) Acetyl salicylic acid is the chemical name of aspirin → True.
• (D) Vitamin B\(_{12}\) (cobalamin) contains cobalt (Co\(^{3+}\)), not magnesium. Magnesium is in chlorophyll. → False.
Step 1: Check each statement.
• (A) Chlorophyll contains Mg\(^{2+}\) and is responsible for photosynthesis (carbohydrate synthesis) → True.
• (B) Haemoglobin (Fe\(^{2+}\)) binds oxygen reversibly to form oxyhaemoglobin → True.
• (C) Acetyl salicylic acid is the chemical name of aspirin → True.
• (D) Vitamin B\(_{12}\) (cobalamin) contains cobalt (Co\(^{3+}\)), not magnesium. Magnesium is in chlorophyll. → False.
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