Which molecule has the largest number of electrons involved in covent bonds?

A C2H4
B CO2
C CH3OH
D N2

The molecule that has the largest number of electrons involved in covalent bonds is C2H4.

A covalent bond involves sharing of two electrons by two atoms. Each covalent bond in a molecule comprises of two atoms.

C2H4 has six covalent bonds in which twelve electrons are involved. CO2 has  four covalent bonds in which eight electrons are involved. CH3OH has five covalent bonds in which ten electrons are involved. N2 has three covalent bonds in which six electrons are involved.

Therefore, C2H4  has the largest number of electrons involved in covalent bonds.

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A

Explanation:

The molecule with 2 carbons in it will have the most covalent bonds.  Ethylene (a) has a double bond between the two carbons, with two electrons from each carbon that are bonded.  Then, each carbon to hydrogen bond has an electron from the carbon and one from the hydrogen, giving you 2 x 4 = 8.  So the total is 12 for C2H4. The ethanol (c) would be the next largest.

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