The total number of isotopes of hydrogen and number of radioactive isotopes among them, respectively, are :
A
2 and 0
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B
3 and 2
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C
3 and 1
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D
2 and 1
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Solution
The correct option is C 3 and 1 Total number of isotopes of hydrogen is 3 namely protium , deuterium , and tritium
Only tritium is a radioactive element
Correct option is (c)