BIOCHEMISTRY
POLAR AND NONPOLAR MOLECULES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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1
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2
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4
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6
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Detailed explanation-1: -(In Lewis structures, a line represents two electrons.) Atoms tend to form covalent bonds in such a way as to satisfy the octet rule, with every atom surrounded by eight electrons.
Detailed explanation-2: -Each line represents a pair of bonding electrons, which is shared between two atoms. This is typically called a single bond. When there are two lines connecting a pair of atoms, there are four bonding electrons (two pairs) between the atoms. This is called a double bond.
Detailed explanation-3: -Each atom in this Lewis structure should have an octet of electrons (8 electrons). Remember that each lone electron pair counts as two electrons and each bond counts as two electrons (for each of the atoms participating in the bond).
Detailed explanation-4: -In the Lewis structure of N2. There are three bonds shown as the three parallel lines between the N atoms. This is a triple bond, with each bond formed by a pair of electrons, one from each N atom. Thus, this triple bond represents a total of 6 electrons.