A) \[Ca{{(OH)}_{2}}+C{{O}_{2}}\to CaC{{O}_{3}}+{{H}_{2}}O\]
B) \[BaC{{l}_{2}}+N{{a}_{2}}S{{O}_{4}}\to BaS{{O}_{4}}+2NaCl\]
C) \[2Pb{{(N{{O}_{3}})}_{2}}+Heat\to 2PbO+4N{{O}_{2}}+{{O}_{2}}\]
D) \[Fe+CUS{{O}_{4}}\to FeS{{O}_{4}}+CU\]
E) None of these
Correct Answer: B
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