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Lassaigne's solution gives violet colour...

Lassaigne's solution gives violet colouration with sodium nitroprusside. It indicates the presence of :

A

Nitrogen

B

Sulphur

C

Halogens

D

Both N and S

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • On adding FeCl_(3) to the acidic Lassaigne solution, a blood red colouration is obtained. It indicates the presence of :

    A
    S
    B
    N
    C
    N and S
    D
    N and halogen

  • Which ion gives coloured solution ?

    A
    `Zn^(2+)`
    B
    `Ti^(4+)`
    C
    Cu
    D
    `V^(3+)`

  • Violet colour with sodium nitroprusside inn the test of sulphur in an organic compound is due to

    A
    `Na_4[Fe(CN)_5NOS]`
    B
    `Na_4[Fe(CN)_5NO]`
    C
    `Na_2S`
    D
    `Na_3[Fe(CN)_5NOS]`

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    For the detection of sulphur by Lassaigne's test, the addition of sodium nitroprusside to the sodium extract gives purple colouration. This is due to the formation of :

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    The formation of purple colour with Na_2[Fe(CN)_5NO] indicates the presence of

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