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Hello everyone.
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So question number two, ask what is the formal charge on carbon atom in co2 molecule.
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So there are three different resonance structures possible in carbon dioxide.
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One is this, if the electrons get transferred like this and in the similar way like this.
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So in all of the three resonances possible, we can clearly see that there is no charge on carbon atom in any of the case and its octet is filled, which means formal charge on carbon is zero.
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Also we know that carbon dioxide is a neutral molecule, which means there is no formal charge whatsoever on any of the atoms in any of the resonance structures.
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So the formal charge of carbon dioxide molecule is also zero.
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Question number three, asks the molecular geometry of the rightmost carbon of cs3cooh.
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So if you look at this carbon, we have got three atoms attached to it and there is no lone pair of electrons present, which means it will be triagonal planar.
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You can compare it with the left carbon, which has got four atoms attached to it directly without any lone pair.
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So it is tetrahedral.
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Question number four, asks us the hybridization of carbon atom in hcn molecule.
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Now, since carbon here forms bond with only two atoms, so we can say that the carbon atom is sp hybridized...