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could you please help me with these questions. thank you so much

45. What is the order of decreasing reactivity of aldehydes, esters and ketones? a. Aldehydes > esters >ketones b. Esters> al
50. Which of the following is a Lewis acid used in Organic Synthesis? a. HCI b. AICI c. HNO, H2SO d. KMnO 51. Which Lewis aci
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㊥(B) H3o (4t) @) +지utomers : イ8) 2 o H

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