Total number of nucleophiles from the following is:

, , , , , , , (N-methylamine with lone pair)

Question

Total number of nucleophiles from the following is:

, , , , , , ,  (N-methylamine with lone pair)

Canvas Classes · Accepted Answer

Step 1 — Definition of nucleophile

A nucleophile donates an electron pair to an electrophile. Species with lone pairs or  bonds qualify.

Step 2 — Evaluate each species

1. : lone pair on N → nucleophile ✓
2. : lone pair on S → nucleophile ✓
3. : lone pair on S → nucleophile ✓
4. :  electrons → nucleophile ✓
5. : lone pair + negative charge → nucleophile ✓
6. : positively charged proton donor → electrophile ✗
7. : O lone pairs delocalized into C=O → poor nucleophile ✗
8. : lone pair on N → nucl

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