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NTSE Sample Paper NTSE SAT Practice Test-2

  • question_answer
    Silver articles become black on prolonged exposure to air. This is due to the formation of                                

    A)  \[A{{g}_{3}}N\]                               

    B)  \[A{{g}_{2}}O\]

    C)  AgCI                                     

    D)  \[A{{g}_{2}}S\,and\,A{{g}_{3}}N\]

    Correct Answer: B

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