Chemistry · 2020
JEE Main · 2 September 2020, Shift 2 · Q37
Simplified absorption spectra of three complexes ((i), (ii) and (iii)) of M^n + ion are provided below; their λ_max values are marked as A, B and C…
Simplified absorption spectra of three complexes ((i), (ii) and (iii)) of $\displaystyle \mathrm{M}^{\mathrm{n}+}$ ion are provided below; their $\displaystyle \lambda_{\text {max }}$ values are marked as A, B and C respectively. The correct match between the complexes and their $\displaystyle \lambda_{\text {max }}$ values is :
(i)
$\displaystyle \left[\mathrm{M}(\mathrm{NCS})_6\right]^{(-6+\mathrm{n})}$
(ii)
$\displaystyle \left[\mathrm{MF}_6\right]^{(-6+\mathrm{n})}$
(iii)
$\displaystyle \left[\mathrm{M}\left(\mathrm{NH}_3\right)_6\right]^{\mathrm{n}+}$
Official answer
(4)
A-(iii), B-(i), C-(ii)
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JEE Main 2020 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.