2. Sample Papers
  3. KVPY

KVPY Sample Paper KVPY Stream-SX Model Paper-7

  • question_answer
    \[PbS\xrightarrow[\Delta ]{air}X,\,\,X+PbS\xrightarrow[{}]{{}}Pb+S{{O}_{2}}\]

    A) \[PbO\]             

    B)  \[Pb{{O}_{2}}\]

    C) \[PbO\,\,and\,\,PbS{{O}_{4}}\] 

    D) \[Pb{{O}_{2}}\,and\,PbO\]

    Correct Answer: C

    Solution :

    \[PbS+{{O}_{2}}\xrightarrow[{}]{{}}PbO+S{{O}_{2}}\] \[PbS+2{{O}_{2}}\xrightarrow[{}]{{}}PbS{{O}_{4}}\]


You need to login to perform this action.
You will be redirected in 3 sec spinner