1) HBr reacts with CH2-CH-OCH3 under anhydrous conditions at room temperature to give

1 )   CH3CHO and CH3Br

2 )   BrCH2CHO and CH3OH

3 )   BrCH2-CH2-OCH3

4 )   H3C-CHBr-OCH3

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2) The IUPAC name of the compound shown below is

1 )   2-bromo-6-chlorocyclohex-1-ene

2 )   6-bromo-2-chlorocyclohexene

3 )   3-bromo-1-chlorocyclohexene

4 )   1-bromo-3-chlorocyclohexene

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ANSWERS

Solution

1 back to 1 Electrophilic addition reaction more favourable

2 back to 2 Answer: 3 3-bromo-1-chlorocyclohexene