Question

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

A. (i) and (ii) B. (ii) and (iii) C. (iii) and (iv) D. (i) and (iii)

Answer 1

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.