In the electrolysis of concentrated aqueous sodium chloride, chlorine gas forms at the positive electrode. What occurs at the negative electrode, and what happens to the solution?
- Aproduct at the negative electrode: hydrogen; the solution becomes acidic
- Bproduct at the negative electrode: hydrogen; the solution becomes alkaline
- Cproduct at the negative electrode: sodium; the solution becomes acidic
- Dproduct at the negative electrode: sodium; the solution becomes alkaline