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Railways General Science & Technology General Concepts of Chemistry Sample Paper General Concepts of Chemistry Sample Test Paper-22

  • question_answer
    Identify 'x', y and 'z' in the following balanced reaction \[xPb{{(N{{O}_{3}})}_{2}}(s)\xrightarrow{{}}yPbO(s)+zN{{O}_{2}}(g)+{{O}_{2}}(g)\]

    A)  2, 4, 2 

    B)  2, 2, 4

    C)  2, 4, 4 

    D)  4, 2, 2

    Correct Answer: B

    Solution :

    [b] \[2Pb{{(N{{O}_{3}})}_{2}}(s)\xrightarrow{{}}2PbO(s)+4N{{O}_{2}}(g)+{{O}_{2}}(g)\]


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