NEET Chemistry Classification Of Elements And Periodicity In Properties Online Test Set A

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Question 1

Question

Which is mismatched regarding the position of the element as given below?

Answer

X(Z = 89) - f block, 6th period  

Both (1) & (3)

Z(Z = 115) - d block, 7th period       

Y(Z = 100) - f block, 7th period