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Cu^(2+) salts are...

`Cu^(2+)` salts are

A

deep blue in colour

B

light blue in colour

C

light green in colour

D

colourless.

Text Solution

Verified by Experts

`Cu^(+)` salts are colourless or white .
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Explain by giving suitable reason. (a). Yellow coloured aqueous solution of sodium chromate changes to orange-red when CO_2 under pressure is passed. (b). Green solution of potassium manganate, K_2MnO_4 , turns purple when CO_2 is circulated. (c). Hg^(2+) and Hg_2^(2+) salts are colourless. (d). Cu^(2+) salts are paramagnetic while Cu^(o+) salts are diamagnetic in nature.

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Knowledge Check

  • In the aqueous solution, Cu(+1) salts are unstable because

    A
    Cu(+1) has a `3d^(10)` configuration
    B
    the change in free energy of the overall reaction is zero
    C
    they disproportionate easily to the Cu and Cu (+2) states
    D
    they disproportionate easily to the Cu (+2) and Cu (+3) states.

  • In aqueous solution Cu(+1) salts are unstable because

    A
    Cu(+1) has `3d^(10)` configuration.
    B
    They disproportionate easily to Cu and `Cu^(2+)` states.
    C
    They disproportionate easily to `Cu^(2+) and Cu^(3+)` states.
    D
    Its change in free energy is zero

  • In an aqueous solution, Cu(+1) salts are unstable because

    A
    `Cu(+1)` has a `3d^(10)`configuration
    B
    they disproportionate easily to the `Cu and (+2)` states
    C
    they disproprtionate easily to the `Cu(+2) and Cu(+3)`states
    D
    the change in free energy of the overall is zero

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