A) \[A{{g}_{2}}S+2NaCl\to 2AgCl+N{{a}_{2}}S\]
B) \[PbS+2{{O}_{2}}\to PbS{{O}_{4}}\]
C) \[2AgCl+4Hg\to 2AgHg+H{{g}_{2}}C{{l}_{2}}\]
D) Both [a] and [c]
Correct Answer: D
Solution :
In the chlorodising roasting, the metal or its ore is converted into chloride by sheating with a chloride salt.
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