Match the following: List - I List - II (A) Zn 2 + (P) Diamagnetic (B) Ga + (Q) Spin magnetic moment = 35 BM (C) Fe 3 + (R) 18 e − in outer most shell (D) Br − (S) 3d subshell is fully filled (T) Al

Question

Match the following: List - I List - II (A) Zn 2 + (P) Diamagnetic (B) Ga + (Q) Spin magnetic moment = 35 ​ BM (C) Fe 3 + (R) 18 e − in outer most shell (D) Br − (S) 3d subshell is fully filled (T) All the orbital of outer most shell are fully filled

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Question Explanation :

Match ions with electronic properties (Magnetism, Shell count, d-occupancy). Concept:

Electronic Configuration & Magnetic Moment $(μ = n (n + 2))$

Solution :

• Zn²⁺ ([Ar])3d¹⁰: Diamagnetic (P). The surviving outermost shell ( $n = 3$ ) is fully filled (3s²3p⁶3d¹⁰), containing $2 + 6 + 10 = 18$ electrons (R, S, T).

• Ga⁺ ([Ar])3d¹⁰4s²: Diamagnetic (P). Contains a full 3d subshell (S).

• Fe³⁺ ([Ar])3d⁵: Has 5 unpaired electrons. Spin magnetic moment $μ = 5 (5 + 2) = 35 \approx 5.92$ BM (Q).

• Br⁻ ([Ar])3d¹⁰4s²4p⁶: Noble gas configuration. Diamagnetic (P). Contains a full 3d subshell (S).

Final Answer:

• A → P, R, S, T

• B → P, S

• C → Q

• D → P, S

List - I	List - II
(A) $Zn^{2 +}$	(P) Diamagnetic
(B) $Ga^{+}$	(Q) Spin magnetic moment $= 35$ BM
(C) $Fe^{3 +}$	(R) $18 e^{-}$ in outer most shell
(D) $Br^{-}$	(S) 3d subshell is fully filled
	(T) All the orbital of outer most shell are fully filled

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