(a)
Interpretation:
Reason for hydrogens atoms on amides can form stronger hydrogen bonds than hydrogen atoms on
Concept Introduction:
The unshared electrons of an atom that does not involve in bonding are called lone pair.
Curved arrows are necessary in drawing the resonance structure.
Curved arrows has a head indicating that the electrons are coming and tail indicating that the electrons are going.
The two rules in drawing the resonance structure is,
- Breaking of single bond is not allowed.
- Never exceed an octet for second row elements.
When a single Lewis structure does not represent a structure adequately, the true structure is the intermediate between the two or more structure referred to as resonance structure.
Hydrogen bonding is a type of dipole-dipole interaction of molecules when the hydrogen is bonded to strong electronegative atom (F, O, N, etc) in the molecules.
(b)
Interpretation:
Intermolecular hydrogen bonds have to be drawn by stacking up three molecules directly on the top of the other.
Concept Introduction:
Hydrogen bonding is a type of dipole-dipole interaction of molecules when the hydrogen is bonded to strong electronegative atom (F, O, N…) in the molecules.
Intermolecular hydrogen bonding is the hydrogen bond formed between two molecules.
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Chapter 2 Solutions
Organic Chemistry
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