Question

Statement A: Valency of s-block elements is equal to number of electrons
present in ultimate shell.
Statement B: The common valency of d-block elements is 2.
Statement C: General electronic configuration of transition elements is ns' (n-1) 80-10
a) All the statements are correct
b) All the statements are incorrect
CAB are correct and C is incorrect
d) A, B are incorrect and C is correct
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Answer 1

Answer:

a

Explanation:

I think it is the right answer.