Coordination Compounds Question 1
Question 1 - 2024 (01 Feb Shift 1)
Given below are two statements:
Statement (I): A solution of $\left[\mathrm{Ni}\left(\mathrm{H}{2} \mathrm{O}\right){6}\right]^{2+}$ is green in colour.
Statement (II): A solution of $\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}$ is colourless.
In the light of the above statements, choose the most appropriate answer from the options given below:
(1) Both Statement I and Statement II are incorrect
(2) Both Statement I and Statement II are correct
(3) Statement I is incorrect but Statement II is correct
(4) Statement I is correct but Statement II is incorrect
Show Answer
Answer (2)
Solution
$\left[\mathrm{Ni}\left(\mathrm{H}{2} \mathrm{O}\right){6}\right]^{+2} \rightarrow$ Green colour solution due to $\mathrm{d}-\mathrm{d}$ transition.
$\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{-2} \rightarrow$ is diamagnetic and it is colourless.
