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  3. 11th Class
  4. Chemistry

11th Class Chemistry Sample Paper Chemistry Sample Paper-3

  • question_answer
    When hydrogen peroxide is treated with a cold acidified \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] solution containing ether, a blue colour is obtained. This is due to

    A)  Per chromic acid 

    B)                    Potassium chromate

    C)  Chromium sulphate                

    D)  Chromium trioxide.

    Correct Answer: A

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