Q: Separation of the isotope of uranium requires a physical method rather than a chemical method. It is so mainly because
(a)it is too dangerous to mix other chemicals with uranium
(b)the isotopes are chemically the same element
(c)the isotopes differ in number of neutrons
(d)natural uranium contains only 0.7% U-235
Correct Answer: (c)
The correct answer is (c): the isotopes differ in number of neutrons. Subject: Science & Technology | Sub-topic: Computer & Information Technology Note: This answer was determined through AI-based research. Verify against the official answer key when available.