Which of the following statements is `//` are correct ?

Options

A. Rust is `Fe_(2)O_(3)`
B. `Zn-Cu` cell is called Daniell cell
C. Saline water slows down rusting.
D. Pure metals undergo corrosino faster then impure metals.

Answer

a,c,d

Explanation

Correct statements`:`
`a.` Rust is `Fe_(2)O_(3).xH_(2)O`
`b.` Correct.
`c.` Saline water water fastens the rusting.
`d.` Pure metals undergo corrosion slower than impure metals.