p-Block elementsHard

Question

Select incorrect statement.

Options

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 dπ - pπ)
C.SiC and B4C are covalent carbides.
D.NCN2- ion is not isostructural and isoelectronic with CO2.

Solution

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

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