Question

Match List I with List II and select the correct answer using the codes given below the lists

	List I Molecules		List II Elements
A	Vitamin $B_{12}$	1	Magnesium
B	Haemoglobin	2	Cobalt
C	Chlorophyll	3	Copper
D	Chalcopyrite	4	Iron

• A. A- 2, B- 4, C- 1, D- 3
• B. A- 1, B- 3, C- 4, D- 2
• C. A- 4, B- 3, C- 2, D- 1
• D. A- 3, B- 2, C- 1, D- 4

Answer 1

The correct option is A A- 2, B- 4, C- 1, D- 3

Vitamin B12 is a collective term for a group of cobalt-containing compounds known as cobalamins. Iron is an essential element for blood production. About 70 percent of your body's iron is found in the red blood cells of blood as haemoglobin. Green plants are dependent on chlorophyll for photosynthesis and magnesium is required for chlorophyll production. This element is, therefore, an essential nutrient for green plants. Chalcopyrite is the most important copper ore. Chalcopyrite is a copper iron sulfide mineral.

Therefore, the correct answer is option A.