Q. Which of the following is not correct?
A) Chlorophyll is responsible for the synthesis of carbohydrates in plants
B) The compound formed in the addition of oxygen to haemoglobin is called oxyhaemoglobin
C) Acetyl salicylic acid is known aspirin
D) The metal ion present in vitamin B_{12} is Mg^{2+}
Explanation
(d)
Vitamin $B_{12}$ or cyanocobalamine contains cobalt and not magnesium.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.