Question

The product of reaction of an aq. solution $B{i}^{3+}$ salt with sodium thiosulphate gives :

• A. $Bis$
• B. $B{i}_2{\left(S_2{O}_3\right)}_3$
• C. $Na\left[Bi{\left(S_2{O}_3\right)}_2\right]$
• D. $\left[B{i}_2{\left(S_2{O}_3\right)}_2\right]C{l}_2$

Answer 1

The correct option is B $B{i}_2{\left(S_2{O}_3\right)}_3$

Option (B) is correct.
The product of reaction of an aqueous solution of $B{i}^{3+}$ salt with sodium thiosulphate gives $B{i}_2{\left(S_2{O}_3\right)}_3$.
$3N{a}_2{S}_2{O}_3+2BiC{l}_3⟶B{i}_2{\left(S_2{O}_3\right)}_3+6NaCl$
$B{i}_2{\left(S_2{O}_3\right)}_3+3H_{2}O⟶B{i}_2{S}_3+3H_{2}S{O}_4$