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Question:

For the given orbital in Column I, the only CORRECT combination for any hydrogen-like species is:

(IV) (iv) (R)

(III) (iii) (P)

(I) (ii) (S)

(II) (ii) (P)

Solution:

ψ vs R graph for 2s orbital is shown in the diagram, which has one radial node. ∴ (III)(ii)(P) is correct.