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Q.

Which of the following is incorrect for H2, D2 and T2?

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a

Their physical properties differ considerably due to large difference of their masses.

b

Chemical properties are almost same due to same electronic configurations 1s1 of  11H, 12H and 13H.

c

13H disintegrates producing  23H high energy β-particles.

d

Their rates of reactions differ due to different bond enthalpies.

answer is C.

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Detailed Solution

H 13 → β -10 (of low energy) +He 23
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