Question

Select incorrect statement.

• A. Reaction of CO2 and H2 produces carbon monoxide.
• B. The toxicity of CO is due to its ability to bind to the Fe atom in haemoglobin through multiple bonding (the d$\pi$ - p$\pi$)
• C. SiC and B4C are covalent carbides.
• D. NCN2– ion is not isostructural and isoelectronic with CO2.

Answer 1

Answer: (D)

NCN2– ion is not isostructural and isoelectronic with CO2.

Answer 2

Both have same number of electrons i.e. 22, so isoelectronic and are linear so also isostructural.