10th Class Science Solved Paper - Science-2017 Delhi Set-II

  • question_answer
    Two carbon compounds X and Y have the molecular formula \[{{\mathbf{C}}_{\mathbf{3}}}{{\mathbf{H}}_{\mathbf{6}}}\] and \[{{\mathbf{C}}_{\mathbf{4}}}{{\mathbf{H}}_{\mathbf{10}}}\] respectively. Which one of the two is most likely to show addition reaction?
                Justify your answer. Also give the chemical equation to explain the process of addition reaction in this case.

    Answer:

    \[{{C}_{3}}{{H}_{6}}\] is propene i.e. unsaturated hydrocarbon. \[{{C}_{4}}{{H}_{10}}\] is butane i.e. saturated hydrocarbon. Thus propene being unsaturated shows addition reaction.
    \[C{{H}_{3}}-CH=C{{H}_{2}}+C{{l}_{2}}\xrightarrow[{}]{{}}\underset{\begin{smallmatrix}  | \\  Cl \end{smallmatrix}}{\mathop{C{{H}_{3}}CH}}\,-C{{H}_{3}}Cl\]


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