Correct Answer: Option B
Explanation:
The chemical formula of Phosphine is PH3; Acetylene is C2H2 and Ammonia is NH3.
Formation of Phosphine:
Ca3P2+6H2O→3Ca(OH)2+2PH3
Formation of Acetylene:
CaC2(s)+2H2O(l)→Ca(OH)2(s)+C2H2(g)
Formation of Ammonia:
Mg3N2+6H2O→3Mg(OH)2+2NH3
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