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Which of the following precipitate(s) do...

Which of the following precipitate(s) does /do not dissolve in excess of ammonia solution ?

A

`Zn(OH)_(2)`

B

`Ni(OH)_(2)`

C

`Al(OH)_(3)`

D

B and C both

Text Solution

Verified by Experts

The correct Answer is:
C
(A)`Zn(OH)_(2)+4NH_(3)rarr[Zn(NH_(3))_(4)]^(2+)`(colourless solution)+`20H^(-)`
(B)`Ni(OH)_(2) darr +6NH_(3)rarr[Ni(NH_(3))_(6)]^(2+)`(deep blue solution)+`20H^(-)`
( C)`Al(OH)_(3)+NH_(3)to`No reaction.
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RESONANCE-QUALITATIVE ANALYSIS PART 1-A.L.P
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  10. Which of the following will not give positive chromyl chloride test ?

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  13. Identify the compound which turns black with ammonia solution.

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