JEE Main & Advanced Chemistry Redox Reactions / रेडॉक्स अभिक्रियाएँ Question Bank Oxidation Reduction

  • question_answer
    When \[P\] reacts with caustic soda, the products are \[P{{H}_{3}}\] and \[Na{{H}_{2}}P{{O}_{2}}.\] This reaction is an example of [IIT 1980; Kurukshetra CEE 1993; CPMT 1997]

    A)                 Oxidation

    B)                 Reduction

    C)                 Oxidation and reduction (Redox)

    D)                 Neutralization

    Correct Answer: C

    Solution :

           \[\overset{0}{\mathop{{{P}_{4}}}}\,+3NaOH+3{{H}_{2}}O\to \underset{\begin{smallmatrix}  \,\,\,\,\,\,\,\text{Sodium} \\  \text{hypophosphite} \end{smallmatrix}}{\mathop{3Na{{H}_{2}}P{{O}_{2}}}}\,+\overset{-3\,\,\,\,\,\,\,\,\,}{\mathop{P{{H}_{3}}}}\,\].                                 It shows oxidation and reduction (Redox)  properties.


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