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NEET Chemistry Redox Reactions / रेडॉक्स अभिक्रियाएँ Question Bank Self Evaluation Test - Redox Reactions

  • question_answer
    \[a{{K}_{2}}C{{r}_{2}}{{O}_{7}}+bKCl+c{{H}_{2}}S{{O}_{4}}\xrightarrow{{}}\] \[xCr{{O}_{2}}C{{l}_{2}}+yKHS{{O}_{4}}+z{{H}_{2}}O\] The above equation balances when

    A) a = 2, b = 4, c = 6 and x = 2, y = 6, z = 3

    B) a = 4, b = 2, c = 6 and x = 6, y = 2, z = 3

    C) a = 6, b = 4, c = 2 and x = 6, y = 3, z = 2

    D) a = 1, b = 4, c = 6 and x = 2, y = 6, z = 3

    Correct Answer: D

    Solution :

    [d] The balanced equation is \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}+4KCl+6{{H}_{2}}S{{O}_{4}}\xrightarrow{{}}\] \[2Cr{{O}_{2}}C{{l}_{2}}+6{{K}_{2}}S{{O}_{4}}+3{{H}_{2}}O\]


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