Question

A. True

b. False: chemicals that become contaminated, dry out, or oxidize can turn unstable and become potentially explosive chemicals (pec)

Answer 1

True, Chemicals the become contaminated, dried out, or oxidized can turn unstable and become potentially explosive chemicals(PEC).  it can subsequently become explosive when subjected to heat, light, friction, or mechanical shock. 

Answer 2

The given statement is True.

The chemicals that are contaminated, dry out, and turn unstable and can become potentially explosive chemicals when exposed to certain conditions like high pressure, fire, et cetera.

There are direct explosive chemicals such as bullets ,blasting caps. Potentially explosive chemicals can get oxidized, polymerized, or become contaminated and as a result of this become explosive when subjected to heat, light. friction,et cetera.