Question

Q21- Plastics are -
2 points
O highly reactive
good conductors of heat
heavy
non-reactive​

Answer 1

Explanation:

Plastics are non- reactive at room temperature and others are highly reactive. Because of lower density than metals, .

Answer 2

Answer:

non-reactive.... hope this answer helps you ! It was difficult to make out what your question was so pls forgive if its wrong !