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JEE Main & Advanced Chemistry Equilibrium / साम्यावस्था Question Bank Hydrogenion concentration pH scale and buffer solution

  • question_answer
    An aqueous solution of sodium carbnate has a pH greater than 7 becaue                                              [DCE 2003]

    A)                 It contains more carbonate ions than \[{{H}_{2}}O\] molecules

    B)                 Contains more hydroxide ions than carbonate ions 

    C)                 \[N{{a}^{+}}\]ions react with water

    D)                 Carbonate ions react with \[{{H}_{2}}O\]

    Correct Answer: B

    Solution :

               \[pH>7=\]Basic                                 It means contain more hydroxide ions than carbonate ions.


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