Statement 1. 4s orbital has lower energy than 3d orbital. Statement 2. s-orbital is spherically symmetrical and remains closer to the nucleus and has lower energy than d-orbital.
A
Statement-1 is true , Statement-2 is also true. Statement-2 is the correct explanation of Statement-1
B
Statement-1 is true , Statement-2 is also true. Statement-2 is not correct explanation of Statement-1
C
Statement -1 is true, Statement-2 is false.
D
Statement-1 is false, Statement-2 is true.
Text Solution
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The correct Answer is:
B
Correct explanation. Because of shielding effect, 3d orbital has higher energy than 4s orbital. For details, consult text part.
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