BIOCHEMISTRY
POLAR AND NONPOLAR MOLECULES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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CH4
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Xe
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H2O
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CO2
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Detailed explanation-1: -Water (H2O), like hydrogen fluoride (HF), is a polar covalent molecule.
Detailed explanation-2: -Water (H2O) is polar because of the bent shape of the molecule. The shape means most of the negative charge from the oxygen on side of the molecule and the positive charge of the hydrogen atoms is on the other side of the molecule. This is an example of polar covalent chemical bonding.
Detailed explanation-3: -Both CO2 and H2O have two polar bonds. However the dipoles in the linear CO2 molecule cancel each other out, meaning that the CO2 molecule is non-polar. The polar bonds in the bent H2O molecule result in a net dipole moment, so H2O is polar.
Detailed explanation-4: -Water is a molecular compound consisting of polar molecules that have a bent shape. The oxygen atom acquires a partial negative charge, while the hydrogen atom acquires a partial positive charge.
Detailed explanation-5: -Water is a polar molecule. While the overall charge of the molecule is neutral, the orientation of the two positively charged hydrogens (+1 each) at one end and the negatively charged oxygen (-2) at the other end give it two poles.