Chemical Coordination and Regulation Question 43

43. Which of the following radioactive isotope is used in the detection of thyroid cancer?

[1995, 02]

(a) Iodine-131

(b) Carbon-14

(c) Uranium-238

(d) Phosphorus-32

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Answer : a

Hints & Solutions

(a) Iodine is an element used by thyroid gland for the synthesis of thyroid hormones. Thus radioactive isotope Iodine -131 is used as radioactive material for detection of thyroid cancer.