29. Which carbocation would be most stable? a. CH3 CH 2 CH CH2 b. CH2- CH2-CH CH

Question

29. Which carbocation would be most stable? a. CH3 CH 2 CH CH2 b. CH2- CH2-CH CH-CH3 CH3-C-CH CH2 30. When a benzene ring is used as a substituent, it is called a group. a phenyl b, nitro c bromo d. chloro 31. There are three types of polyenes (molecules containing two or more double bonds They a, conjugated b. cumulated c. isolated d. All of the above 32. Lithium Aluminum Hydride (LiAllle) is a great reducing agent for converting alcohols to b, aldehydes c, ketones d, all of the above 33. The stability of benzyllic radicals can be explained by theory. lb. bond order c, inductive d molecular orbital

Explanation / Answer

29. Carbocation c is the most stable because it is allylic and tertiary.

30. When benzene ring is used as a substutuent it is called phenyl (option a)

31. Types of plyene are conjugated, cumulated and isolated. option d is correct

32. LiAlH4 reduces all ester, aldehyde and ketone. So, option d is correct.

33. The stability of benzylic radicals can be explained by resonance theory.

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