10. Consider an electrophilic addition reaction. Which of the following statemen

Question

10. Consider an electrophilic addition reaction. Which of the following statements regarding Markovnikov’s rule is FALSE? a. It refers to the process of electrophilic addition to alkenes b. It predicts major reaction products based upon carbocation stability c. The most stable carbocation leads to the minor product d. It is independent of carbocation rearrangement

13. Which of the following additions to alkenes occurs specifically as an anti addition?

a.        Addition of Br2    b.       Addition of Br2, H2O   c.        Addition of HCl d.       Both (a) and (b)

19.    What are the expected products of the reaction of PhOCH3 with an excess of concentrated HBr?

(Note: Ph = phenyl, a C6H5- group).

a.        Ph-Br and CH3OH

b.       Ph-Br and CH3Br

c.        Ph-OH and CH3OH

d.       Ph-OH and CH3Br

Explanation / Answer

10) d. It is independent of carbocation rearrangement

13) option d both a and b

19) d.       Ph-OH and CH3Br

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