1.

{:("Microcosmic salt"overset(Delta)rarr.,underset(("Transparent"))('M')+H_(2)O+NH_(3)(uarr)),(,""darrCoO),(,'N'("Blue bead")):} Molecular formula of microcosmic salt is:

Answer»

`Na_(2)B_(4)O_(7).10H_(2)O`
`Na_(2)(NH_(4))HPO_(4)`
`Na_(2)(NH_(4))PO_(4).4H_(2)O`
`NA(NH_(4))HPO_(4).4H_(2)O`

Answer :D


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