Q22 / 90 · JEE Main 2022 (27 Jun Shift 2) · Chemistry

Consider the following set of quantum numbers.

  n l m1
A 3 3 -3
B 3 2 -2
C 2 1 +1
D 2 2 +2

The number of correct sets of quantum numbers is

Correct answer: 2

Solution

For a given 'n' value l will have 0 to n-1 values and for a given 'l' value m will have -m to +m values

For n=3, l=3, is not possible.Similarly for n=2, l=2 is also not possible, as n and l have same values.

So, set A, D are not possible.

If n=3, l can have 0 to 2 values and 'm' can have -2 to +2 values,

So, set B is possible.

If n=2, 'l' can have 0 and 1 values and 'm' can have -1 to +1 values.

So, set C is also possible.

Hence, set B and C are the correct set of quantum nmbers.

Hence, the correct answer is 2.

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