MCQ practice · SSC Chemistry Board questions · Chapter 3: Structure of Matter
Which of the following isotopes is used to treat leukaemia of the blood?
Think it through first, then pick an option.
- a 60Co
- b 32P
- c 99Tc
- d 131I
Answer and explanation
Correct answer: b 32P
The book: ³²P phosphate treats leukaemia of the blood.
Why the other options are wrong
- a 60Co: ⁶⁰Co is for tumours; leukaemia is treated with ³²P.
- c 99Tc: ⁹⁹Tc takes pictures for diagnosis; leukaemia is treated with ³²P.
- d 131I: ¹³¹I is for thyroid cancer; leukaemia is treated with ³²P.
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