Nuclear Chemistry MCQs 20 min Score: 0 Attempted: 0/20 Subscribe 1. The physical properties of an atom are related to (A) nucleus (B) electron (C) proton (D) neutronShow All Answers 2. The spontaneous emission of radiations from certain elements is called (A) radioactivity (B) half-life (C) isotopes (D) uranium-235Show All Answers 3. The radioactive elements are (A) stable (B) unstable (C) radioactivity (D) half-lifeShow All Answers 4. For artificial radioactivity, elements are broken down (A) stable (B) unstable (C) radioactivity (D) half-lifeShow All Answers 5. Alpha rays carry a charge (A) positive (B) negative (C) neutral (D) zeroShow All Answers 6. Beta rays are actually fast moving (A) nucleus (B) electron (C) proton (D) neutronShow All Answers 7. Rays have no charge and mass as well (A) alpha (B) beta (C) gamma (D) no oneShow All Answers 8. Rays are more powerful than X-rays (A) alpha (B) beta (C) gamma (D) no oneShow All Answers 9. The disintegration of radioactive elements into their half quantity is called (A) new life (B) half-life (C) old life (D) lifelessShow All Answers 10. Fission means (A) to break (B) to add (C) to waste (D) to acquireShow All Answers 11. Fusion means (A) to break (B) to add (C) to waste (D) to acquireShow All Answers 12. One atom of uranium-235 emits ______ neutron(s) on breaking (A) 1 (B) 2 (C) 3 (D) 4Show All Answers 13. The transformation of one element into another is only possible in ______ reactions (A) Nuclear (B) Fusion (C) Fission (D) NeutralShow All Answers 14. All isotopes are (A) radioactive (B) stable (C) fusion (D) half-lifeShow All Answers 15. The isotope of cobalt helpful to kill cancerous cells is (A) Co59 (B) Co60 (C) Co61 (D) Co62Show All Answers 16. The study of genetic changes in plants and animals is done with the help of (A) radioactive isotopes (B) radioactivity (C) alpha rays (D) beta raysShow All Answers 17. The structure and nature of polymers can be determined with the help of (A) radioactive isotopes (B) radioactivity (C) alpha rays (D) beta raysShow All Answers 18. The half-life of C14 is (in years) (A) 5577 (B) 5569 (C) 5567 (D) 5568Show All Answers 19. An archaeologist determined the age of Egyptian pyramids (A) Einstein (B) Goldsmith (C) Curie (D) LibbyShow All Answers 20. Which isotope of carbon exists? (A) 6C12 (B) 6C13 (C) 6C14 (D) 6C15Show All Answers