Question

# Zinc can be coated on iron to produce galvanized iron but the reverse is not possible. It is because :

A
zinc has lower negative electrode potential than iron
B
zinc has higher negative electrode potential than iron
C
zinc is lighter than iron
D
zinc has lower melting point than iron

Solution

## The correct option is B zinc has higher negative electrode potential than iron$$E^0_{Zn^{2+} | Zn} =\ – 0.76\ V$$$$E^0_{Fe^{2+} | Fe} =\ – 0.44\ V$$Zn has higher negative SRP (Standard reduction potential) so it works as anode and protects iron to make iron as the cathode.Hence, option $$B$$ is correct.Chemistry

Suggest Corrections

0

Similar questions
View More

People also searched for
View More