BIOCHEMISTRY
POLAR AND NONPOLAR MOLECULES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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BH3 is composed of three polar covalent bonds withpartial positive charges in all opposite sides/directions of the molecule.BF3 is a ____
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Polar molecule
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Nonpolar molecule
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Explanation:
Detailed explanation-1: -BH3 is a nonpolar molecule due to its symmetry. The dipole moments of each of the B-H bonds are canceled out due to the symmetry of the molecule.
Detailed explanation-2: -Boron trifluoride (BF3) is a nonpolar molecule, whereas ammonia (NH3) is a polar molecule.
Detailed explanation-3: -Boron is a metal and nitrogen is a gas in uncombined state, BF3 bonds have no dipole moment whereas NF3 bond have dipole moment, atomic size of boron is smaller than that of nitrogen, BF3 is symmetrical molecule whereas NF3 is unsymmetrical. Because of this NF3 is polar and BF3 is non polar.
Detailed explanation-4: -In the molecule borane, BH3, boron forms single covalent bonds with three hydrogen atoms.
There is 1 question to complete.