JEE Mains · Chemistry · STD 11 - 1. Some basic concept of chemistry
Thyroxine, the hormone has given below structure

The percentage of iodine in thyroxine is ____ \(\%\). (nearest integer)
(Given molar mass in \(\mathrm{g} \mathrm{mol}^{-1} \mathrm{C}: 12. \mathrm{H}: 1, \mathrm{O}: 16\), \(\mathrm{N}: 14, \mathrm{I}: 127)\)
- A 60
- B 65
- C 70
- D 75
Answer & Solution
Correct Answer
(B) 65
Step-by-step Solution
Detailed explanation
\(\rightarrow\) Molecular formula of Thyroxine \(\Rightarrow\) \(\mathrm{C}_{15} \mathrm{H}_{11} \mathrm{O}_4 \mathrm{NI}_4\) \(\rightarrow\) Molecular mass of Thyroxine -…
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