In case of metal carbonyls, the bonding has both σ and π nature, where ligand to metal bond is ' σ ' (coordinate) bond and metal to ligand bond is ' π ' (synergic) bond.
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The metal carbon bond in metal carbonyls possesses both σ and π character. Reason (R): The ligand to metal bond is a π bond and metal to ligand bond is a σ bond. In the light of the above statements, choose the most appropriate answer from the options given below:
Held on 30 Apr 2022 · Verified 9 Jul 2026.
Both (A) and (R) are correct and (R) is the correct explanation of (A)
Both (A) and (R) are correct but (R) is not the correct explanation of (A)
(A) is correct but (R) is not correct.
(A) is not correct but (R) is correct.
Sign in to track your attempts and accuracy.
Sign in to keep a private note on this question. Nothing you write is ever public.
Which of the following is the most electronegative element?
Which of the following are paramagnetic? A. $\left[\mathrm{NiCl}_4\right]^{2-}$ B. $\mathrm{Ni}(\mathrm{CO})_4$ C. $\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}$ D. $\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$ E. $\mathrm{Ni}\left(\mathrm{PPh}_3\right)_4$ Choose the correct answer from the options given below :
Identify the correct orders against the property mentioned (A) $\mathrm{H}_2 \mathrm{O}\gt\mathrm{NH}_3\gt\mathrm{CHCl}_3$ - dipole moment (B) $\mathrm{XeF}_4\gt\mathrm{XeO}_3\gt\mathrm{XeF}_2-$ number of lone pairs on central atom (C) $\mathrm{O}-\mathrm{H}\gt\mathrm{C}-\mathrm{H}\gt\mathrm{N}-\mathrm{O}-$ bond length (D) $\mathrm{N}_2\gt\mathrm{O}_2\gt\mathrm{H}_2$ - bond enthalpy Choose the correct answer from the options given below :
Given below are two statements : Statement I : Ferromagnetism is considered as an extreme form of paramagnetism. Statement II : The number of unpaired electrons in a $\mathrm{Cr}^{2+}$ ion $(\mathrm{Z}=24)$ is the same as that of a $\mathrm{Nd}^{3+}$ ion $(Z=60)$. In the light of the above statements, choose the correct answer from the options given below :
Out of the following complex compounds, which of the compound will be having the minimum conductance in solution?
Work through every NEET UG Inorganic Chemistry PYQ, year by year.