JEE Mains · Chemistry · STD 11 - 4. Chemical bonding and molecular structure
The extra stability of half-filled subshell is due to
(A) Symmetrical distribution of electrons
(B) Smaller coulombic repulsion energy
(C) The presence of electrons with the same spin in non-degenerate orbitals
(D) Larger exchange energy
(E) Relatively smaller shielding of electrons by one another
Identify the correct statements
- A (B), (D) and (E) only
- B \((\mathrm{A}),(\mathrm{B}),(\mathrm{D})\) and (E) only
- C (B), (C) and (D) only
- D (A), (B) and (D) only
Answer & Solution
Correct Answer
(B) \((\mathrm{A}),(\mathrm{B}),(\mathrm{D})\) and (E) only
Step-by-step Solution
Detailed explanation
Extra stability of half filled is due to : (i) Symmetrical distribution of electrons (ii) Large exchange energy (iii) Smaller coulombic repulsion (iv) Smaller shielding of electrons by one another
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