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VIT Engineering VIT Engineering Solved Paper-2014

  • question_answer
    The sodium extract, of an organic compound on acidification with acetic acid and addition of lead acetate solution gives a black precipitate. The organic compound contains

    A) nitrogen                              

    B) halogen

    C) sulphur                

    D) phosphorus

    Correct Answer: C

    Solution :

    The sulphur containing organic compounds when fused with sodium metal give \[=\frac{7.7-4.7}{2}\] which react with lead acetate and forms black ppt. Of PbS. \[\text{i  }\!\!\alpha\!\!\text{  l}\]                                       \[l\alpha \frac{1}{{{d}^{2}}}\]


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