BIOCHEMISTRY
POLAR AND NONPOLAR MOLECULES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the molecular geometry of CO2?
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Bent
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Trigonal planar
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Trigonal pyramidal
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Linear
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Explanation:
Detailed explanation-1: -The initial VSEPR shape for the CO2 molecule is Tetrahedral.
Detailed explanation-2: -Carbon shares two pairs of electrons with each of the oxygen atoms to acquire a full outer shell of 8 electrons.CO2 has a linear shape because the two regions of electron density repel each other to acquire maximum separation of 180 degrees.
Detailed explanation-3: -Why is CO2 a linear molecule whereas H2O has a v-shaped geometry? This is due to the different numbers of electrons in each molecule and VSEPR (Valence Shell Electron Repulsion) theory. This theory states that as electrons are negatively charged, the valence electrons in different atoms in a molecule repel each other.
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