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NEET Chemistry Metallurgy / धातुकर्म Question Bank Self Evaluation Test - General Principals and Process of Isolation of Elements

  • question_answer
    \[XC{{l}_{2}}(excess)+YC{{l}_{2}}\xrightarrow{{}}XC{{l}_{4}}+Y\downarrow ;\] \[YO\xrightarrow[>400{}^\circ ]{\Delta }\frac{1}{2}{{O}_{2}}+Y,\] Ore of Y would be:

    A) Siderite             

    B) Cinnabar

    C) Malachite      

    D) Hornsilver

    Correct Answer: B

    Solution :

    [b] \[\underset{\left( XC{{l}_{2}} \right)}{\mathop{SnC{{l}_{2}}}}\,+\underset{\left( YC{{l}_{2}} \right)}{\mathop{HgC{{l}_{2}}}}\,\xrightarrow{{}}\underset{\left( XC{{l}_{4}} \right)}{\mathop{SnC{{l}_{4}}}}\,+\underset{(Y)}{\mathop{Hg}}\,\] \[HgO+\xrightarrow[>400{}^\circ C]{\Delta }Hg+\frac{1}{2}{{O}_{2}}\] HgS: Cinnabar


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