A) \[NaCl+KN{{O}_{3}}\xrightarrow[{}]{{}}NaN{{O}_{3}}+KCl\]
B) \[Ca{{C}_{2}}{{O}_{4}}+2HCl\xrightarrow[{}]{{}}CaC{{l}_{2}}+{{H}_{2}}{{C}_{2}}{{O}_{4}}\]
C) \[Ca{{(OH)}_{2}}+2N{{H}_{4}}Cl\xrightarrow[{}]{{}}\]\[CaC{{l}_{2}}+2N{{H}_{3}}+2{{H}_{2}}O\]
D) \[2K[Ag{{(CN)}_{2}}]+Zn\xrightarrow[{}]{{}}\] \[2Ag+{{K}_{2}}[Zn{{(CN)}_{4}}]\]
Correct Answer: D
Solution :
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