BIOCHEMISTRY
POLAR AND NONPOLAR MOLECULES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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symmetrical and polar
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asymmetrical and polar
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asymmetrical and nonpolar
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symmetrical and nonpolar
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Detailed explanation-1: -Which statement describes the charge distribution and the polarity of a CH4 molecule? The charge distribution is symmetrical and the molecule is nonpolar.
Detailed explanation-2: -Polar molecules are asymmetric, either containing lone pairs of electrons on a central atom or having atoms with different electronegativities bonded.
Detailed explanation-3: -A positively charged nucleus is surrounded by one or more negatively charged electrons.
Detailed explanation-4: -Electrons in a polar covalent bond are unequally shared between the two bonded atoms, which results in partial positive and negative charges. The separation of the partial charges creates a dipole. The word dipole means two poles: the separated partial positive and negative charges.