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Natural and Artificial Radioactivity Test Online MCQs

Test Name Natural and Artificial Radioactivity Test Online MCQs
Subject Chemistry
Test Type MCQs
Total Question 20
Total Marks 40
Total Time 20 Mints
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Nuclear chemistry is very important branch of chemistry in which we study about the radioactivity, nuclear processes like nuclear transmutation, and nuclear properties. Here you will get Natural and Artificial Radioactivity MCQs Test to increase your knowledge about the nuclear chemistry. This test will help you to clear the viva or interview test easily. Get all the Natural and Artificial Radioactivity Tests below.

Natural and Artificial Radioactivity Test Online MCQs


1. The half-life of a radioactive element is 50 days. How long will it take far its activity reduce to ¼ of it original value?

Question 1 of 20

2. An element with atomic number 84 and mass number 218 loses one α particles in three successive stages, the resulting element will have:

Question 2 of 20

3. Gamma rays are:

Question 3 of 20

4. If a radioactive isotopes with atomic number A and mass number M emits an alpha particle, the atomic number and mass number of that new isotope will become:

Question 4 of 20

5. When the quantity of a radioactive substance is increased two times, the number of atoms disintegrating per unit time is:

Question 5 of 20

6. Radio activity was discovered by:

Question 6 of 20

7. Who observed that when the nucleus of uranium atom was bombarded with fast moving neutrons, it becomes so very unstable that it is immediately broken into two nuclei of nearly equal mass besides other fragments?

Question 7 of 20

8. When ₈₆Ra³²⁶ emits an α particle, a new element is formed. In which of the group in periodic table does it fall?

Question 8 of 20

9. Hydrogen bomb is based on the phenomenon of:

Question 9 of 20

10. Which of the following is used in dating archaeological findings?

Question 10 of 20

11. The atomic wt. of thorium is 232 and atomic number 90 at the end of disintegration we obtain an isotope of lead (At. Wt. 208, At. no. 82). The no. of emitted (a) and (b) particles are:

Question 11 of 20

12. The α-particle is:

Question 12 of 20

13. The atomic wt. of uranium is 238 and its atomic number 92. In course of its radioactive disintegration 8α and 6β particles are emitted, the atomic wt. and atomic no. of the resultant atoms are:

Question 13 of 20

14. The age of most ancient geological formation is estimated by:

Question 14 of 20

15. In melting lattice structure of solid:

Question 15 of 20

16. When a radioactive substance is subjected to a vaccum, the rate of disintegration per second

Question 16 of 20

17. If uranium (mass no. 238, atomic number 92) emits α-particles the product has mass no. and atomic number

Question 17 of 20

18. Out of the following the one which has no charge is:

Question 18 of 20

19. On bombarding ₈O1⁶ with deuterons, the nuclei of the product formed will be:

Question 19 of 20

20. On bombarding ₇N 1⁴ with α particles the nuclei of the product formed, after the release of a proton, will be:

Question 20 of 20


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