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.