Q: Which one of the following element's isotope is used in the treatment of cancer?
(a)Uranium
(b)Cobalt
(c)Sodium
(d)Iodine
Correct Answer: (d)
The correct answer is (c): सोडियम. Subject: Science & Technology | Sub-topic: Chemistry Note: This answer was determined through AI-based research. Verify against the official answer key when available.