Given below are two statements:
Statement (I): A solution of is green in colour.
Statement (II): A solution of is colourless.
Choose the most appropriate answer:

Question

Given below are two statements:
Statement (I): A solution of  is green in colour.
Statement (II): A solution of  is colourless.
Choose the most appropriate answer:

Canvas Classes · Accepted Answer

Strategy:
 Relate the color of coordination compounds to d-d transitions and the presence or absence of unpaired electrons / vacant d-orbitals.

Step 1: Evaluate Statement I
 contains  () in an octahedral field (). It has unpaired electrons and unoccupied spots in the  orbitals, allowing d-d transitions. It absorbs red light and appears green. (Correct).

Step 2: Evaluate Statement II
 contains  () in a square planar field. The strong field  forces pairing, leaving the  orbital empty while all o

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