Please could you help me solving this O.Chem quiz? It is due an hour from now D

Question

Please could you help me solving this O.Chem quiz? It is due an hour from now D Question 1 1 pts In 1939, Linus Pauling wrote "No sharp distinction can be made between tautomerism and resonance" Consider this statement and choose the most correct answer below This statement is correct White some tautomers are not true resonance structure, most tautomers can be considered resonance structure of each other This statement is incorrect. Tautomers are isomers while resonance structures are dfferent representations of the same molecule. O This statement is correct Tautomers are always resonance structures of the same molecule This statement s incorrect Resonance descrtes the movement of r-electrons while tautomerism describes the movement of -bonds

Explanation / Answer

9)

If the pH of the solution is lower than the pKa of the group, then the group will exist in it's protonated form. pH greater than the pKa will result in the basic form (no proton).

So answer is (b).

8) b

7) c

5) a

2) c

1) a

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