Question

please give correct answer to these 5 questions with explanations if possible, thankyou

During a nucleophilic addition reaction between LiAlHe and a carbonyl compound, what atom is the nucleophile? Select one The proton (H) atom The hydrogen atom of the lithium aluminium hydride. The aluminium atom. The carbon atom of the carbonyl group. The oxygen atom of the carbonyl group Why do carbonyl compounds undergo nucleophilic addition reactions ? Select one: The compound the carbonyl group is reacting with is highly reactive and capable of reacting with any organic substance, The double bond in the carbonyl group is highly reactive The oxygen atom in the carbonyl group is nucleophilic. The carbon atom in the carbonyl group is electrophilic. None of the other options. Which of the following diagrams is the most correct for a general carbonyl structure? What is the organic product of the following reaction? Select one: 1. LiAlH4 2. H* 0—00 Select one: None of the other options OH OH R R2 is o=uto to o=uis 0000 What statement below best describes producing a hemiacetal from an alcohol and carbonyl compound? R R2 Select one: There are multiple sets containing a single alcohol and a single carbonyl compound which will react to produce the desired product. There is only a single alcohol and multiple carbonyl compounds which will react to produce the desired product There are multiple alcohols and multiple carbonyl compounds which will react in any combination to produce the desired product There is only a single alcohol and a single carbonyl compound which will react to produce the desired product There are multiple alcohols and a single carbonyl compound which will react to produce the desired product R2 CH

Answer 1

1) Nucleophile is the electron rich species which get attracted to electrophilic center such as carbonyl carbon. In the addition of LiAIH4, hydride H- is the electron rich species and hence answer is option 2) The hydrogen atom of the lithium aluminium hydride. 2) The answer is option 4) The carbon atom in the carbonyl group is electrophilic. 3) carbonyl is attached to oxygen hence CrO becomes polar and that includes, oxygen with 8 charge and carbon with +8 . Hence answer is option 2) 0-5 R1 + R2 4) 0 Answer is option 3) 1) LIATH4 OH 2) H+ H2C Hac hexan-3-one CH3 hexan-3-ol 3 5) Hemeacetals are produced upon reaction of aldehyde and alcohol. Answer is option 4) There is only a single alcohol and a single carbonyl compound which will react to produce the desired product.