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The colour of the solution/precipitate o...

The colour of the solution/precipitate obtained in the elemental analysis of an organic compound and the molecule/ion responsible for the colour are given below. Choose the correctly matched pairs:

A

Prussian blue – `Fe_4 [Fe(CN)_6]_(3)xH_2O`

B

Yellow `-(NH_4)_2MoO_4`

C

Violet colour `-[Fe(CN)_5NOS]^(4)`

D

Blood red colour - `[Fe(SCN)]^(2-)`

Text Solution

Verified by Experts

The correct Answer is:
A, C, D
During the detection of P, the yellow ppt. obtained are due to `(NH_(4))_3,PO_(4).12MoO_3` (amm. phosphomolybdate) and not due to `(NH_4), MoO_4` , (ammonium molybdate).
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