Question

Two complexes  [Cr(H₂O₆)Cl₃   (A) and  [Cr(NH₃)₆]Cl₃ (B) are violet and yellow colored, respectively. The incorrect statement regarding them is 

(1)   Δ₀ value of (A) is less than that of (B) 

(2)  Δ₀ value of (A) and (B) are calculated from the energies of violet and yellow light, respectively.

(3)  Both absorb energies corresponding to their complementary colors. 

(4)  Both are paramagnetic with three unpaired electrons 

Answer 1

Correct option  (2)  Δ₀ value of (A) and (B) are calculated from the energies of violet and yellow light, respectively.

Explanation:

Δ₀ order will be compared by spectro chemical series not by energies of violet and yellow light Δ₀ order is [Cr(H₂O)₆Cl₃ < [Cr(NH₃)₆]Cl₃