Paper: CSIR-NET June 2014 · Subject: Inorganic Chemistry · Chapter: Coordination Chemistry · Topic: Coordination Chemistry – General · Marks: 2 · Difficulty: Medium
$\left[\mathrm{CoL}_{6}\right]^{3+}$ is red in colour whereas $\left[\mathrm{CoL}_{6}^{\prime}\right]^{3+}$ is green. L. and $\mathrm{L}^{\prime}$ respectively corresponds to,
(a)$\mathrm{NH}_{3}$ and $\mathrm{H}_{2} \mathrm{O}$
(b)$\mathrm{NH}_{3}$ and 1, 10-phenanthroline
(c)$\mathrm{H}_{2} \mathrm{O}$ and 1, 10-phenanthroline
(d)$\mathrm{H}_{2} \mathrm{O}$ and $\mathrm{NH}_{3}$