CMC Medical CMC-Medical Ludhiana Solved Paper-2007

  • question_answer
    Distinguishing reagent between silver and lead salts is

    A)  \[{{H}_{2}}S\] gas

    B)  dil. \[HCl\]solution

    C)  \[N{{H}_{4}}Cl\] (solid) + \[N{{H}_{4}}OH\] solution

    D)  \[N{{H}_{4}}Cl\](solid) + \[{{(N{{H}_{4}})}_{2}}C{{O}_{3}}\] solution

    Correct Answer: B

    Solution :

                    On adding dil. \[HCl\] to silver and lead salts, white ppt. of chlorides of Ag and Pb are obtained which on heating with water are separated from each other as\[PbC{{l}_{2}}\]is soluble in hot water but\[AgCl\]is not.


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