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The presence of magnesium is confirmed i...

The presence of magnesium is confirmed in the qualitative analysis by:

A

titan yellow solution +`2M NaOH` solution

B

disodium hydrogen phosphate +`NH_(4)Cl+NH_(3) (aq)`

C

magneson `(l)` reagant

D

All of these

Text Solution

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The correct Answer is:
D
(A)titan yellow is absorbed by magnesium hydroxide producing a deep-red colour or precipitate.
(B)`Mg^(2+) +NH_(3) +HPO_(4)^(2-) to Mg(NH_(4))PO_(4)darr` (white)
( C)Blue lake is formed by the adsorption of reagent on `Mg(OH)_(2)`.
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