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The pair(s) of reagents that yield param...

The pair(s) of reagents that yield paramagnetic species is/are

A

`Na` and excess of `NH_3`

B

`K` and excess of `O_2`

C

`Cu` and dilute `HNO_3`

D

`O_2` and 2-ethylanthraquinol

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
(a) `Na +(x + y) NH_(3) rarr Na^(oplus) (NH_(3))_(x) + e^(Ө) (NH_(3)_(y) rarr` Paramagnetic
(b) `K + excess O_(2) rarr KO_(2) ("Superoxide") rarr` Paramagnetic
(c) `3 Cu + 8HNO_(3) rarr 3 Cu(NO_(3))_(2) + 2NO + 4 H_(2) O rarr` Paramagnetic
(d) .
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Knowledge Check

  • The pair(s) of reagents that yeild paramagnetic species is/are

    A
    Na and excess of `NH_(3)`
    B
    K and excess of `O_(2)`
    C
    Cu and dilute `HNO_(3)`
    D
    `O_(2)` and 2-ethylanthraquinol.

  • The paramagnetic species is

    A
    `KO_(2)`
    B
    `SiO_(2)`
    C
    `TiO_(2)`
    D
    `BaO_(2)`

  • The paramagnetic species is

    A
    `KO_2`
    B
    `SiO_2`
    C
    `TiO_2`
    D
    `BaO_2`

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