10th Class Science Sample Paper Science Olympiad Model Test Paper-20

  • question_answer
    Which one of the following chemical equations is balanced?

    A) \[BaC{{l}_{2}}+A{{l}_{2}}{{(S{{O}_{4}})}_{3}}\to BaS{{O}_{4}}+AlC{{l}_{3}}\]

    B) \[3BaC{{l}_{2}}+A{{l}_{2}}{{(S{{O}_{4}})}_{3}}\to 3BaS{{O}_{4}}+2AlC{{l}_{3}}\]

    C) \[3BaC{{l}_{2}}+A{{l}_{2}}{{(S{{O}_{4}})}_{3}}\to 3BaS{{O}_{4}}+AlC{{l}_{3}}\]

    D)  \[3BaC{{l}_{2}}+A{{l}_{2}}{{(S{{O}_{4}})}_{3}}\to BaS{{O}_{4}}+2AlC{{l}_{3}}\]

    E)  None of these

    Correct Answer: B


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