10th Class Science Acids, Bases and Salts / अम्ल, क्षार एवं लवण Question Bank Acids Bases and Salts

  • question_answer
    While demonstrating acid base reactions, Ms. Prabha, a science teacher added sodium oxide to HCI until it was in excess. Which of the following graphs correctly represents the change in pH?

    A)  

    B)

    C)

    D)

    Correct Answer: A

    Solution :

                                                            pH of HCI is below 7. When\[N{{a}_{2}}O\] is added, pH increases till neutralization point and then further increases due to excess of \[N{{a}_{2}}O\] which is basic.


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