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NEET Sample Paper NEET Sample Test Paper-4

  • question_answer
    The set of numerical coefficients that balances the equation\[{{K}_{2}}Cr{{O}_{4}}+HCl\xrightarrow{{}}{{K}_{2}}C{{r}_{2}}{{O}_{7}}+KCl+{{H}_{2}}O\]is

    A)  \[1,1,2,2,1\]                 

    B)  \[2,2,1,1,1\]

    C)  \[2,1,1,2,1\]                

    D)  \[2,2,1,2,1\]

    Correct Answer: D

    Solution :

    The balanced equation is as: \[2{{K}_{2}}Cr{{O}_{4}}+2HCl\xrightarrow{{}}{{K}_{2}}C{{r}_{2}}{{O}_{7}}+2KCl+{{H}_{2}}O\]Hence, the set of numerical coefficients is 2, 2, 1.2,1.


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