Assertion (A): Fuse wire is made up of an alloy constituted of lead and tin in 1 : 1 ratio by mass.
Reason (R): Both lead and tin have comparatively lower melting points than other metals.

Options

A. Both (A) and (R) are true and (R) is the correct reason of (A).
B. Both (A) and (R) are true but (R) is not the correct explanation of (A).
C. (A) is true but (R) is false.
D. (A) is false but (R) is .

Answer

A

Explanation

Fuse wire is made up of alloy constituted of lead and tin in ` 1 : 1` ratio by mass as both lead and tin have comparatively low melting points than other metals.