Question:
How many iodine molecules are present in thyroxine?
How many iodine molecules are present in thyroxine?
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The molecular formula of thyroxine contains 4 iodine atoms. Always check the molecular formula to determine the number of atoms of each element present in the compound.
Updated On: Jun 17, 2025
- 3
- 2
- 1
- 4
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The Correct Option is D
Solution and Explanation
Thyroxine (T4) is a hormone produced by the thyroid gland. The molecular formula of thyroxine is \({C}_15{H}_11{I}_4{NO}_4\), which indicates that there are 4 iodine (I) atoms in the thyroxine molecule. Thus, there are 4 iodine molecules present in thyroxine.
- Option (1) is incorrect because there are 4 iodine atoms, not 3.
- Option (2) is incorrect because the molecular formula clearly shows 4 iodine atoms.
- Option (3) is incorrect because the iodine content is 4, not 1.
- Option (4) is correct because the molecular formula of thyroxine contains 4 iodine atoms.
Thus, the correct answer is option (4): 4.
- Option (1) is incorrect because there are 4 iodine atoms, not 3.
- Option (2) is incorrect because the molecular formula clearly shows 4 iodine atoms.
- Option (3) is incorrect because the iodine content is 4, not 1.
- Option (4) is correct because the molecular formula of thyroxine contains 4 iodine atoms.
Thus, the correct answer is option (4): 4.
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