Question

Monel metal is a metallic alloy of copper and nickel with $5$% iron. It is used in making:

• A. locks
• B. strong boxes
• C. almirahs
• D. motor parts

Answer 1

The correct option is A locks

Monel is a group of nickel alloys, primarily composed of nickel (up to 67%) and copper, with small amounts of iron, manganese, carbon, and silicon. Stronger than pure nickel, Monel alloys are resistant to corrosion by many agents, including rapidly flowing seawater.

Being stronger than pure nickle Monel metal is used in making locks.

Hence option A is correct answer.