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Hydrocarbons — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistryHydrocarbons1 Mark
MCQ
CH3​CH = CH2 ​+ HBr gives:
  • A
    CH2 = CH− CH2 ​− Br
  • B
    CH3​ − CH2​ − CH2 − Br
  • C
    CH3​CH(Br) − CH3​
  • D
    CH3​ − CH2 − CH3​
✓

Answer

  1. CH3​CH(Br) − CH3​

    Explanation:

    This is an example of addition reaction.

    The double bond is broken and hydrogen and bromine are added to the given compound.

    Bromine will add up on secondary carbon. (Markovnikov's Rule)

    CH3​CH = CH2 ​+ HBr → CH3​CH(Br) − CH3​.

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