Guanine has 5 nitrogens. Arrange the indicated nitrogens in decreasing order of
ID: 1065656 • Letter: G
Question
Guanine has 5 nitrogens. Arrange the indicated nitrogens in decreasing order of basicity (1 = most basic, 3 = least basic).
If there are fewer than 3 nitrogens in the molecule, leave that answer space blank.
If two nitrogens have the same basicity, give them the same number.
Explanation / Answer
7 is more basic because lone pair on Nitrogen in -NH2 is freely available.
3 is more basic compared to 5 because lone pair on Nitogen is not involved in resonance.
Nitrogen 7 = 1 - most basic
Nitrogen 3 = 2
Nitrogen 5 = 3 - least basic
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