Question

27) Lead is used for making fusible alloy constituted of lead and tin in ______ ratio by mass.

• A. 1:2
• B. 2:1
• C. 1:3
• D. 1:1

Answer 1

The correct option is D

1:1

Explanation:

(D) Fuse is a protective device which protects the electronic devices from the attack of high voltage, by melting down and thereby breaking the circuit. For this purpose of making fuse a compound is needed which melts easily , hence we use an alloy of lead and tin which has low melting point .

Lead and tin are mixed in the ratio of 1:1 by mass for making fusible alloy.

Hence the correct option is (D).