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10th Class Science Chemical Reactions and Equations Question Bank Chemical Reactions and Equation

  • question_answer
    In the given equation, what does 'X' stand for? \[(2)Al+(X){{H}_{2}}S{{O}_{4}}\to A{{l}_{2}}{{(S{{O}_{4}})}_{3}}+(3){{H}_{2}}\]

    A) 2                                            

    B) 3                            

    C) 1                            

    D) 5

    Correct Answer: B

    Solution :

    To balance the given equation the number of atoms of each element should be same on both the sides. Hence, the 'X' value should be 3.  \[2Al+3{{H}_{2}}S{{O}_{4}}\to A{{l}_{2}}{{(S{{O}_{4}})}_{3}}+3{{H}_{2}}\]


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