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GATE XE 2023 | Question-123

\begin{tabular}{l|l}
Q.133 & The synthesis of thyroxine T4 in human body requires \\
\hline

  1. & Selenium \\
    \hline
  2. & Iodine \\
    \hline
  3. & Iron \\
    \hline
  4. & Zinc
    \end{tabular}

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