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According to VSEPR theory, the molecule C2H2 has how many regions of electron density around the central atom (how many electron groups?) (enter a number from 1 to 6) ? C2H2 will have (linear, trigonal planar, tetrahedral, trigonal pyramidal, bent, trigonal bipyramidal, seesaw, T-shaped, octahedral, square pyramidal, square planar) electronic geometry, and (linear, trigonal planar, tetrahedral, trigonal pyramidal, bent, trigonal bipyramidal, seesaw, T-shaped, octahedral, square pyramidal, square planar) molecular geometry

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Answer :

The number of regions of electron density around the central atom (carbon atom) is 2.

The electronic geometry of acetylene molecule is, linear

The molecular geometry of acetylene molecule is, linear

Explanation :

As we know that when a carbon attached to the four single sigma bonds then the hybridization will be, [tex]sp^3[/tex].

When a carbon attached to the three single sigma bonds and one-[tex]\pi[/tex] bond that means a carbon bonded to another atom by the double bond then the hybridization will be, [tex]sp^2[/tex].

When a carbon attached to the two single sigma bonds and two-[tex]\pi[/tex] bonds that means a carbon bonded to another atom by the triple bond then the hybridization will be, [tex]sp[/tex].

The given molecule is (acetylene) [tex]C_2H_2[/tex] or [tex]H-C\equiv C-H[/tex]

The acetylene molecule is a linear molecule that has one carbon-carbon triple bond and two carbon-hydrogen single bond.

The hybridization of carbon atom is [tex]sp[/tex] because the carbon attached to the two single sigma bonds and two-[tex]\pi[/tex] bonds.

The number of regions of electron density around the central atom (carbon atom) is 2 that means one region corresponds to carbon-carbon triple bond and another region carbon-hydrogen single bond.

The electronic geometry of acetylene molecule will be: linear

The molecular geometry of acetylene molecule will be: linear

There are 2 regions of electron density around the central atom. The molecule will have linear electronic and molecular geometry.

[tex]\rm C_2H_2[/tex] is the molecule of acetylene with 1 triple bond between 2 carbon atoms and 2 single bond.

H - C [tex]\equiv[/tex] C - H

Because the carbon is attached to the two single sigma bonds and a triple bond, it has sp hybridization.

The number of regions of electron density around the central atom (carbon atom) is 2 which states one region corresponds to carbon-carbon triple bond and another region carbon-hydrogen single bond.

According to the VSEPR theory for sp hybridization,

The electronic geometry of [tex]\rm C_2H_2[/tex] molecule will be: linear

The molecular geometry of [tex]\rm C_2H_2[/tex] molecule will be: linear.

For more information about the VSEPR theory, refer the link:

https://brainly.com/question/2749661?referrer=searchResults

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