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

  • question_answer
    Which of the following act as reducing agents?
    (i) \[PO_{4}^{3-}\] 
    (ii) \[S{{O}_{3}}\]  
    (iii) \[PO_{3}^{2-}\]
    (iv) \[N{{H}_{3}}\]

    A) (i), (ii) and (iii)               

    B) Only (iii)

    C) (i), (iii) and (iv)              

    D) (iii) and (iv)

    Correct Answer: D

    Solution :

    [d] In (i) and (ii) both P and S are in highest oxidation state. In (iii) and (iv) ; P has oxidation state of+4 which can be oxidized to +5 state, while in case of \[N{{H}_{3}}\] nitrogen has oxidation state of -3 which can be oxidised.


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