Which of the following statements is correct about the thyroid gland ?

Which of the following statements is/are correct about the following is/are correct about the following reactions ?

Which of the following statements is/are correct about the following is/are correct about the following reactions ?

Which of the following statements is correct about the following reactions ? .

Which of the following statements is correct about the following reactions ? .

What is thyroid gland?

Which of the following statements about Be is not correct?

Which of the following diseases is not related to thyroid gland ?