Correct sequence of CO bond order in given compounds is :
(P) Fe(CO)5
(Q) CO
(R) H3B

Question

Correct sequence of CO bond order in given compounds is :
(P) Fe(CO)5
(Q) CO
(R) H3B <- CO
(S) [Mn(CO)5]-

Prashant Kotian · Accepted Answer

Correct answer: B. Step 1: The reaction of Ni^2+ with dimethylglyoxime (dmgH) produces the neutral bis(dimethylglyoximato)nickel(II) complex, [Ni(dmg)2]. Step 2: The complex has a square planar geometry around the Ni^2+ (3d^8) ion, which forces dsp^2 hybridization. Step 3: In square planar d^8 complexes, the four lower energy d-orbitals are completely filled with 8 electrons, leaving no unpaired electrons. Therefore, the complex is diamagnetic.

💡 Solution & Explanation

Practice 22,000+ questions like this