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

  • question_answer
    What is the colour of Copper (II) Chloride formed in the given chemical equation? \[\underset{(black)}{\mathop{CuO+}}\,2HCl\to \underset{(?)}{\mathop{CuC{{l}_{2}}}}\,+{{H}_{2}}O\]

    A) Blue                                     

    B) Green                 

    C) Blue-green                       

    D) Both (a) and (b)

    Correct Answer: C

    Solution :

    When black copper (II) oxide reacts with dilute\[HCl\], it dissolves in the acid to form a blue-green solution of copper (II) chloride salt.


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