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Showing 1 question in Physics for Class 8. Tap a card to reveal the answer.
PhysicsChemical Effects of Electric CurrentmediumWhat is electroplating? Give one use of it.
Reveal answer ↓
What it is
Electroplating uses electricity to coat one metal with a thin layer of another.
Answer
Electroplating is the process of depositing a layer of one metal over another using electricity (the chemical effect of electric current). When current passes through a solution of a metal salt, metal ions are deposited on the object connected to the negative terminal. It is used to coat iron with chromium or nickel to prevent rusting and to make cheap ornaments look like gold or silver.
- •Depositing one metal over another using electricity
- •Uses the chemical effect of current
- •Object at negative terminal gets coated
- •Used to prevent rusting and for jewellery
Why learn this
It stops rusting (chrome on bikes and taps) and makes cheap jewellery look like gold or silver.
💡 Memory trick
Electro-PLATE = electricity lays a PLATE of metal on top.