The red curved line in the diagram to the right represents an electron-pushing a

Question

The red curved line in the diagram to the right represents an electron-pushing arrow. Indicate whether the arrowhead should be a single-barbed arrow or a double-barbed arrow and whether the direction of the arrow should be clockwise or counter-clockwise. Both answers are needed for this question to be completely correct. The lone pairs on the heteroatoms have been deliberately removed from the structures below to avoid giving away the answer. But remember electron flow arrows MUST always originate from a source of electron density (lone pair or bond). Use your knowledge of organic chemistry to determine which atoms would have lone pairs and then answer the question. Single-barbed Arrovw Double-barbed Arrow Clockwise Counter-clockwise None of the above

Explanation / Answer

In this case the carbocation is electron deficient and needed electron to be stable.On the otherhand acetic acid is electron rich and so in this case oxygen atom of acetic donate electron(lone pair) and get itself positive charge.So it should be single-barbed arrow and directed from acetic acid oxygen to carbocation,and so it is anticlockwise.

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