NEET Chemistry Hydrocarbons / हाइड्रोकार्बन Question Bank Self Evaluation Test - Hydrocarbons

  • question_answer
    Which of the following types of reaction occur when a reactant has got a double bond?
    (i) Addition
    (ii) Photolysis
    (iii) Nucleophilic substitution
    (iv) Polymerization

    A) (i) and (iv)         

    B) (i) and (ii)

    C) (i), (ii) and (iv)               

    D) (i),(ii),(iii) and (iv)

    Correct Answer: A

    Solution :

    [a] Addition reaction occurs on a double bond. The compound containing double bonds are also undergo polymerisation. So, the correct option are both (i) and (iv) e.g. \[C{{H}_{2}}=C{{H}_{2}}+HOCI\xrightarrow{{}}\underset{\left( addition\text{ }reaction \right)}{\mathop{C{{H}_{2}}OH-C{{H}_{2}}Cl}}\,\] \[nC{{H}_{2}}=C{{H}_{2}}\xrightarrow{polymerisation}\underset{Polyethene}{\mathop{-{{[C{{H}_{2}}-C{{H}_{2}}-]}_{n}}}}\,\]


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