Chemistry · 2025
JEE Main · 22 January 2025, Shift 2 · Q61
Identify the homoleptic complex(es) that is/are low spin. (A) [ Fe ( CN )_5 NO ]^2- (B) [ CoF_6]^3- (C) [ Fe ( CN )_6]^4- (D) [ Co ( NH_3)_6]^3+ (E)…
Identify the homoleptic complex(es) that is/are low spin.
(A)
$\displaystyle \left[\mathrm{Fe}(\mathrm{CN})_5 \mathrm{NO}\right]^{2-}$
(B)
$\displaystyle \left[\mathrm{CoF}_6\right]^{3-}$
(C)
$\displaystyle \left[\mathrm{Fe}(\mathrm{CN})_6\right]^{4-}$
(D)
$\displaystyle \left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$
(E)
$\displaystyle \left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$
Choose the correct answer from the options given below :
Official answer
From NTA’s final answer key for this paper.
(1)
(C) and (D) only
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JEE Main 2025 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.