Match each substance in the left column with its description in the right column

Question

Match each substance in the left column with its description in the right column. Aromatic compound ________ A. adds one H_2O to a triple bond to make an enol Either __________ B. adds H_2O to a double bond Grignard reagent __________ C. aprotic solvent for Grignard reaction Hg(OAc)_2/NaBH_4 ________ D. conjugated double bonds in a ring with 4N + 2 pi electrons KMnO_4 (hot, conc) __________ E. converts carbonyl compounds to alcohols Organic lithium reagent (R - Li) _________ F. enol rearranges to form ketone Peroxides __________ G. generate free radicals R-CEN _________ H. oxidative cleavage of double or triple bonds Sia_2BH __________ I. reacts with carboxylic acid to form ketone Tautomerism ___________ J. Reacts with Grignard to form ketone

Explanation / Answer

Match

1) Aromatic compound - These are Cylic planar conjugated compounds having (4n+2) pi electrons

Aromatic Compound - conjugated double bonds in ring with (4n+2) pi electrons

2) Ether are used as aprotic solvent in Grignard reaction.

Ether - aprotic solvent in Grignard reaction

3) Grignard reagents add to carbonyl compounds in ether to form alcohol.

rignard reagents - converts carbonyl cmpounds to alcohol

4) Hg(OAc)2/NaBH4 addas one water molecule to triple bond

Hg(OAc)2/NaBH4 - Add one H2O to triple bond to make an enol

5) KMnO4 breaks the unsaturation to form curresponding carbonyl compounds

KMnO4 (hot, conc.) - oxiadative cleavage of double and triple bond

6) Organic Lithium reagents (R-Li) abstracts hydrogen of carboxylic acid to form ketone

Organic Lithium reagents (R-Li) - reacts with carboxylic acid to form ketone

7) Peroxides decomposes in presence of light or heat to generates free radical

Peroxides - generates free radical

8) Grignard reagents reacts with RCN followed by hydrolysis gives ketone

R-CN - reacts with Grignard reagents to form ketone

9) Sia3BH adds one water molecule to double bond to form alcohol

Sia3BH - Adds H2O to double bond

10) Enol rearraneges to keto gruop by transfer of hydrogen

Tautomerism - enol rearranges to form ketone

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