Polymerization can be hazardous because it can do what?

• A. Consume energy
• B. Require extreme heat
• C. Release a massive amount of energy and cause an explosion
• D. Produce no hazard

Answer: (C)

The idea being tested is that polymerization can be dangerously energetic. When monomers join to form polymers, new chemical bonds release energy as heat. In large or poorly cooled batches, that heat can build up faster than it can be removed. The temperature rise speeds up the reaction further, creating a runaway effect where even more heat is released in a short time. This rapid energy release can lead to high pressure and an explosion. So the real hazard is not just that the reaction happens, but that it can unleash a massive amount of energy in an uncontrolled burst.

The other statements don’t capture this risk. Some polymerizations do involve heat to start, but the danger isn’t about needing heat itself; it’s about the heat released during the reaction. Saying it consumes energy isn’t accurate for typical polymerizations, and saying there’s no hazard ignores the potential for a dangerous runaway.