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JEE Main & Advanced JEE Main Paper Phase-I Held on 07-1-2020 Morning

  • question_answer
    Oxidation number of potassium in \[{{K}_{2}}O,\text{ }{{K}_{2}}{{O}_{2}}\]and \[K{{O}_{2}}\], respectively, is [JEE MAIN Held on 07-01-2020 Morning]

    A) \[+1,\,\,+2\text{ }and+4\]

    B) \[+2,+1\text{ }and+\frac{1}{2}\]

    C) \[+1,\,\,+4\text{ }and+2\]

    D) \[+1,\,\,+1\text{ }and+1\]

    Correct Answer: D

    Solution :

    [d] Alkali metals show an oxidation state of +1 in their compounds.


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