IIT JEE Questions And Answers :: Nuclear Chemistry: part1



IIT JEE : Nuclear Chemistry QUESTIONS AND ANSWERS :: part1 : 26 to 30

Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :

26.The average life period of a radioactive element is

1.44 T
144 T
0.144 T
14.4 T

27.Emission is caused by the transformation of one neutron into a proton. This results in the formation of a new element having

lower nuclear charge
same nuclear charge
nuclear charge lower by one unit
nuclear charge higher by one unit

28.A certain nucleide has a half life period of 30 minutes. If a sample containing 600 atoms is allowed to decay for 90 minutes, how many atoms will remains.

175 atoms
250 atoms
450 atoms
75 atoms

29.A radioactive isotope has a half life of 20 days. If 100 gms. of the substance is taken the weight of the isotope remaining after 40 days is

2.5 gms
15 gms
25 gms
75 gms

More Nuclear Chemistry QUESTIONS AND ANSWERS available in next pages

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