1. [C] (I) and (III) Copper is placed above silver in electrochemical series and thus reaction occurs Cu+2Ag⁺ → Cu2⁺ +2Ag

    [C] (I) and (III)
    Copper is placed above silver in electrochemical series and thus reaction occurs
    Cu+2Ag⁺ → Cu2⁺ +2Ag

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  2. [B] The different colours in the white light bend towards the normal line at different angles on entering prism.

    [B] The different colours in the white light bend towards the normal line at different angles on entering prism.

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