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