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QNEET-2016-Ch-1107: NEET 2016 Chemistry - Class 12 NEET-2016-Ch-1107 Solution: Zinc can be coated on iron to produce galvanized iron but the…
Zinc can be coated on iron to produce galvanized iron but the reverse is not possible. It is because zinc is lighter than iron zinc has lower melting point than iron zinc has lower negative electrode potential than iron zinc has higher negative electrode potential than iron
Multiple Choice Options
- A zinc is lighter than iron
- B zinc has lower melting point than iron
- C zinc has lower negative electrode potential than iron
- D zinc has higher negative electrode potential than iron
Step-by-Step Verified Solution
The reduction potential values are
E� Zn 2+ /Zn = � 0.76 V
E� Fe 2+ /Fe = � 0.44 V
Thus, due to higher negative electro potential value
of zinc than iron, iron cannot be coated on zinc.