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Which of the following statement(s) is/a...

Which of the following statement(s) is/are with true ?

A

Soluble bicarbonates give white precipitate with `MgCI_(2)` in cold

B

Soluble calcium bicarbonates give white precipitate with dilute amonia solution followed by `MgSO_(4)`.

C

Bicarbonates are generlly soluble in water

D

`Hg(II)` chloride forms a reddish-brown precipitate in a solution of soluble carbonate.

Text Solution

Verified by Experts

The correct Answer is:
b,c,d
a.`2HCO_(3)^(Theta) + Mg^(2+) overset("Cold") to Mg (HCO_(3))_(2) ("soluble") overset(Delta) to MgCO_(3) + CO_(2) + 2H_(2)O`
b.`Ca(HCO_(3))_(2) + 2NH_(3) rarr (NH_(4))_(2) CO_(3) + CaCO_(3) darr`
c. True statement
d. `CO_(3)^(2-) + 4Hg^(2+) + 3H_(2)O rarr Hg_(4)O_(3)CO_(3) darr` (reddish brown ) or `HgCO_(3),3HO + 6H^(o+)`
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