Chemistry · 2019
JEE Main · 9 January 2019, Shift 1 · Q49
Two complexes [ Cr ( H_2 O )_6] Cl_3 (A) and [ Cr ( NH_3)_6] Cl_3 (B) are violet and yellow coloured, respectively. The incorrect statement regarding…
Two complexes $\displaystyle \left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_3$ (A) and $\displaystyle \left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_6\right] \mathrm{Cl}_3$ (B) are violet and yellow coloured, respectively. The incorrect statement regarding them is :
Official answer
(4)
$\displaystyle \Delta_0$ values of (A) and (B) are calculated from the energies of violet and yellow light, respectively.
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JEE Main 2019 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.