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Consider the following statement(s) regarding CO.
I) CO has one $σ$ and two $π$ -bonds.
II) CO acts as electron donor.
III) CO has one lone pair on its carbon atom.
IV) CO reacts with all metals to produce metal carbide.
The correct statements are

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I, II and III

I, II and IV

I, III and IV

Both I and IV

answer is A.

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Detailed Solution

Statements I, II and III are correct, while IV is incorrect. It’s correct form is as follows :
CO reacts with certain metals when heated to form metal carbonyls.

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