Question

Tick the appropriate answer

Copper metal is used in making

• A. electric wire
• B. fuse wire
• C. filling cavity in teeth
• D. prepration of hydrogen

Answer 1

The correct option is A

electric wire

Explanation for the correct option -

(A) Copper is used in making electric wires because it has high electrical conductivity.

Explanation for the incorrect option -

(B) Tungsten is used in making fuse wires as tungsten has low melting point and thus it melts on getting high voltage and therby blows off the circuit

(C) Mercury metal is used in filling cavity in teeth as it is durable and has binding properties.

(D) Magnesium is used in the preparation of hydrogen.

Therefore , option ‘A’ is the correct choice and Copper metal is used in making electric wires.