The common features among the species

CHEMISTRY · Single correct · CBSE · Chemistry · Chemical Bonding and Molecular Structure · Chemical Bonding and Molecular Structure

Problem

\text{CN}^-

\text{CO}

and

\text{NO}^+

are: (IIT 2001) (1) bond order 3 and isoelectronics (2) bond order 3 and weak field ligands (3) bond order 2 and

\pi

-acceptor (4) isoelectric and weak field ligands