Q.

Which of the following orbitals can not undergo hybridisation ?(i) 3d, 4s              (ii) 3d., 4d                  (iii) 3d, 4s & 4p          (iii) 3s, 3p & 4s

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a

only ii

b

ii & iv

c

ii & iii

d

i, ii & iv

answer is B.

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Detailed Solution

3d, 4d cart not participate in hybridisation because more energy difference. 3s, 3p and 4s can not participate in hybridisation because more energy difference.
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