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NEET Sample Paper NEET Sample Test Paper-25

  • question_answer
    Nitrogen can be purified from the impurities of oxides of nitrogen and ammonia by passing through

    A)  conc. HCl                    

    B)  alkaline solution of pyrogallol

    C)  a solution of \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]acidified with\[{{H}_{2}}S{{O}_{4}}\]

    D)  a solution of KOH (aq.)

    Correct Answer: D

    Solution :

     Oxides of nitrogen are acidic and are dissolved in KOH (alkali).


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