Question

Which of the following options is not correct regarding a salt bridge?

• A. Maintains electrical neutrality of cell.
• B. Salt bridge is a straight tube.
• C. Contains gelatin.
• D. Contains $N{H}_{4}Cl$.

Answer 1

The correct option is B

Salt bridge is a straight tube.

Salt bridge is a U-tube filled with a paste made by mixing gelatin or agar agar gel and a salt like $KCl,KN{O}_3$ or $N{H}_{4}Cl$. It completes the circuit by transfer of ions. It maintains the electrical neutrality of the cell.