Chemistry · 2020
JEE Main · 8 January 2020, Shift 2 · Q37
The correct order of the calculated spin-only magnetic moments of complexes (A) to (D) is: (A) Ni ( CO )_4 (B) [ Ni ( H_2 O )_6] Cl_2 (C) Na_2[ Ni (…
The correct order of the calculated spin-only magnetic moments of complexes (A) to (D) is :
(A)
$\displaystyle \mathrm{Ni}(\mathrm{CO})_4$
(B)
$\displaystyle \left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_2$
(C)
$\displaystyle \mathrm{Na}_2\left[\mathrm{Ni}(\mathrm{CN})_4\right]$
(D)
$\displaystyle \mathrm{PdCl}_2\left(\mathrm{PPh}_3\right)_2$
Official answer
(4)
$\displaystyle (A) \approx(C) \approx(D)<(B)$
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JEE Main 2020 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.