A) \[[C{{a}_{3}}{{(P{{O}_{4}})}_{2}}.Ca{{F}_{2}}]\]
B) \[Ca{{({{H}_{2}}P{{O}_{4}})}_{2}}+CaS{{O}_{4}}\]
C) \[Ca{{({{H}_{2}}P{{O}_{4}})}_{2}}\]
D) \[C{{a}_{3}}{{(P{{O}_{4}})}_{2}}\]
E) \[CaH{{P}_{4}}.2{{H}_{2}}O\]
Correct Answer: C
Solution :
\[Ca{{({{H}_{2}}P{{O}_{4}})}_{2}}\]is called triple superphosphate. It is produced by the action of phosphoric acid and calcium phosphate. \[Ca{{(P{{O}_{4}})}_{2}}+4{{H}_{3}}P{{O}_{4}}\xrightarrow{{}}\] \[\underset{triple\text{ }superphosphate}{\mathop{3Ca{{({{H}_{2}}P{{O}_{4}})}_{2}}}}\,\]
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