Question

Select the incorrect statements.

• A. Zn-Cu cell is called Daniell cell
• B. Rust in $Fe _{2} O _{3}$
• C. Saline water slow down rusting
• D. Pure metals undergo corrosion faster than impure metal

Answer 1

Answer: (B), (C), (D)

Rust is $Fe _{2} O _{3} \cdot x H _{2} O$
Saline water speeds up the rusting process and impure metal corrodes more faster as compared to pure metal.