Question

9. Rank the following from most to least acidic CI COOH COOH coOH COOH IV A. I II III >IV B. II I IV> III C. III IV II > I D. IV III I > II E. III IV I II 10. Which hydrogen is the most acidic in the molecule shown below? C A 11. Why are ketones less reactive than aldehydes? A. Ketones are less sterically hindered. B. Carbonyl carbon of ketones is less electron deficient due to electron donation from alkyl groups. C. Ketones are more sterically hindered D. Both A and B E. Both B and C

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Answer 1

9. Rank the following from most to least acidic. F COOH AV V COOH COOH v COOH electronwithdrawing groups increase the acidic nature A. I > II > III > IV B. II > I > IV > III C. III > IV > II > I D. IV > III > I > II E. III > IV > I > II electron donating groups decrease the acidic nature, 10. Which hydrogen is the most acidic in the molecule shown below? active methylene H is most acidic because two electronwithdrawing groups stabiliza the negative charge. 11. Why are ketones less reactive than aldehydes? A. Ketones are less sterically hindered. B. Carbonyl carbon of ketones is less electron deficient due to electron donation from alkyl groups. C. Ketones are more sterically hindered, D. Both A and B E. Both Band C