A) A gas is evolved.
B) An insoluble salt is formed.
C) Their final pH is 7.
D) A base is produced.
Correct Answer: B
Solution :
In both the cases, precipitation occurs. A white precipitate of \[BaS{{O}_{4}}\] is formed as shown below. (i) \[Ba{{(OH)}_{2}}+{{H}_{2}}S{{O}_{4}}\to BaS{{O}_{4}}+2{{H}_{2}}O\] (ii) \[BaC{{l}_{2}}+{{H}_{2}}S{{O}_{4}}\to BaS{{O}_{4}}+2HCl\]
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