B
\(BaCl_2+H_2SO_4\rightarrow BaSO_4\downarrow+2HCl\)
\(BaCl_2+K_2SO_3\rightarrow BaSO_3\downarrow+2KCl\)
\(BaCl_2+2AgNO_3\rightarrow Ba\left(NO_3\right)_2+2AgCl\downarrow\)
\(BaCl_2+Na_2SO_4\rightarrow BaSO_4\downarrow+2NaCl\)
\(BaCl_2+Na_2SO_3\rightarrow BaSO_3\downarrow+2NaCl\)
\(BaCl_2+CuSO_4\rightarrow BaSO_4\downarrow+CuCl_2\)