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12th Class Chemistry Haloalkanes and Haloarenes / हैलोएल्केन तथा हैलोएरीन्स Question Bank 12th CBSE Chemistry Haloalkanes and Haloarenes

  • question_answer
                                       The following reaction gives two products. \[{{C}_{6}}{{H}_{5}}\,C{{H}_{2}}CHCl{{C}_{6}}{{H}_{5}}\xrightarrow{\text{Alcoholic}\,\text{KOH,}\,\text{heat}}\]Write the structures of the products.

    Answer:

                    \[{{C}_{6}}{{H}_{5}}C{{H}_{2}}CHCl{{C}_{6}}{{H}_{5}}\] upon heating with alcoholic KOH, undergoes dehydrochlorination to yield 1, 2-diphenylethene (stilbene) which exhibits geometrical isomerism. Thus, the two products formed are : trans-1, 2-diphenylethene and cis-1, 2-diphenylethene.


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