Question

Hi,\
A white solid was dissolved in water and separated into two test tubes. When the solution was boiled in the first test tube, a pungent gas was evolved, which turned moist red litmus paper blue.
Acid and a solution of ammonium orthomolybdate,(NH4)2MoO4 , were added to the second test tube, and a yellow precipitate was observed.

Identify the initial solid.
a)Aluminum nitrate
b)Barium chloride
c)Ammonium carbonate
d)Strontium sulfate
e)Ammonium phosphate
f)Lead nitrate
thanks

Answer 1

The initial solid was;

e) Ammonium phosphate