🛠️ JEE🧪 Chemistry

The correct statement among the following is: [JEE Main 2026, 28 Jan (Shift 1)]

Q1

The correct statement among the following is:

[JEE Main 2026, 28 Jan (Shift 1)]

a

\(\text{Ni}{(\text{CO})}_{4}\) and \({\left[\text{Ni}{(\text{CN})}_{4}\right]}^{2−}\) are diamagnetic and \({\left[{\text{NiCl}}_{4}\right]}^{2−}\) is paramagnetic.

b

\({\left[\text{Ni}{(\text{CN})}_{4}\right]}^{2−}\) and \({\left[{\text{NiCl}}_{4}\right]}^{2−}\) are diamagnetic and \(\text{Ni}{(\text{CO})}_{4}\) is paramagnetic.

c

\(\text{Ni}{(\text{CO})}_{4}\) is diamagnetic and \({\left[{\text{NiCl}}_{4}\right]}^{2−}\) and \({\left[\text{Ni}{(\text{CN})}_{4}\right]}^{2−}\) are paramagnetic.

d

\(\text{Ni}{(\text{CO})}_{4}\) and \({\left[{\text{NiCl}}_{4}\right]}^{2−}\) are diamagnetic and \({\left[\text{Ni}{(\text{CN})}_{4}\right]}^{2−}\) is paramagnetic.

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