Question

Write one letter in each blank to match each set of product requirements.

1. The material
_ should be used to make the pipes in a home because it is strong and
relatively nonreactive.
2. The tip of a match contains a compound called red phosphorus, which bums easily in air. During the
production of matches, the red phosphorus needs to be stored under
because it is a
nonreactive gas that keeps the red phosphorus from burning.
A. argon
B. copper
C. magnesium

Answer 1

1:B

2:A

Explanation: because magnesium is relatively reactive and not strong as copper also argon is unractive as it's Noble gas