Reagents such as HC1, HBr, and HOH (H2O) can add across carbon-carbon double and triple bonds, with H forming a bond to one of the carbon atoms in the multiple bond and Cl, Br, or OH forming a bond to the other carbon atom in the multiple bond. In some cases, two products are possible. For the major organic product, the addition occurs so that the hydrogen atom in the reagent attaches to the carbon atom in the multiple bond that already has the greater number of hydrogen atoms bonded to it. With this rule in mind, draw the structure of the major product in each of the following reactions.
a.

b. CH3CH2CH = CH2 + HBr †’
c. CH3CH2CE = CH + 2HBr †’
d.

e.

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H- CH,CH2CH-CH2H2O> CH3 CH,CH,、 CH3 с-с CH