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Chemistry · PYQ NEET UG 2016(2)

हिन्दी

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

  1. A
    zinc has higher negative electrode potential than iron
  2. B
    zinc is lighter than iron
  3. C
    zinc has lower melting point than iron
  4. D
    zinc has lower negative electrode potential than iron
View Answer & Solution

Correct answer · Option A

zinc has higher negative electrode potential than iron

Explanation

Zinc has a more negative standard reduction potential (\( -0.76\text{ V} \)) than iron (\( -0.44\text{ V} \)), making it a sacrificial anode that protects iron.
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