Different isotopes are matched with their uses as

I. Co-60-To treat cancer


II. U-238-To produce electricity


III. I-131-To treat goitre


IV. Na-24-In agricultural research


Options || A. (i) and (ii)


B. (ii) and (iii)


C. (iii) and (iv)


D. (i) and (iii)

Solution Both Co-60 and I-131 are radioactive elements which emits radioactive radiations. Co-60 is known to emit gamma radiation which is use to destroy tumors and I-131 is used to treat goitre and thyroid cancer.

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