(ii) Which orbital in each of the following pairs is lower inenergy in

1.	(ii) Which orbital in each of the following pairs is lower inenergy in a multi-electron system?(a) 25.2p (b) 3p, 3d (c) 3s. 4s (d) 4d, 5f
Answer» EXPLANATION: Using (n+l) ENERGY RULE, Option a LOWER in energy in a multi-electron system So, *Option* A is *correct*.

(ii) Which orbital in each of the following pairs is lower inenergy in a multi-electron system?(a) 25.2p (b) 3p, 3d (c) 3s. 4s (d) 4d, 5f

Answer»

Using (n+l) ENERGY RULE,

Option a LOWER in

energy in a multi-electron system

So, Option A is correct.