Can you help me with #17? Ist afeck 2i I mian a) The molecule has no optical act

Question

Can you help me with #17?

Ist afeck 2i I mian a) The molecule has no optical activity. b) The molecule has an enantiomer c) The molecule has a mirror plane in the molecule. d) None of the above. 16. What term describes the structural relationship between cis-1,2- dimethylcyclopentane and trans 1,2-dimethylcyclopentane? a) constitutional isomers b) identical c) enantiomers d) diastereomers 17. Which would NOT be a regiospecific reaction of alkene? a) Oxymercuration-demercuration c) Oxidative cleavage d) Free radical reaction of alkene with HBr b) Hydroboration 18. Which solvent je-quitable for an S2 reaction mostly? a) ethanol b) bcetone c) water d) None of them 19. Which one would be the major product of the following reaction? a) 2-Methyl-2-pentene c) 2-Methyl-3-pentene b) 3-Methyl-2-pentene 3-Methyl-1-pentene Which reaction of alkene would give the alcohol as its product? a)Acid-cat. hydration b) Alkoxymercuration-demercuration d) Free radical reaction with HBr Bromination 21. Which of the following compounds will undergo an Sw1 reaction most dly? 7. Which of the following is the most stable carbocation? A) 8) C) D) CH3 CHs O CH 23. 2. What is the name of

Explanation / Answer

ANSWER IS D FREE RADICAL REACTION WITH HBr

EXPLANATION

REGIOSPECIFICITY REACTION LEADS TO SINGLE PRODUCT

MIXTURE OF PRODUCT WITH VARIED RATIOS DENOTES IT IS REGIOSELECTIVE

IN CASE OF  FREE RADICAL REACTION WITH HBr MIXTURE OF PRODUCTS ARE RESULTED DEPENDING UPON VARIED DIRECTION OF ADDITION MAY BE SYN OR ANTI FACIAL

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