Multiple choice general knowledge math & puzzles

Teflon was accidently discovered by scientist Dr. Roy Plunkett while he was conducting a ..... experiment in 1938.

  1. coolant gas

  2. coal gas

  3. petroleum jelly

  4. metal slug
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A Correct answer
Explanation

In 1938, Dr. Roy Plunkett at DuPont was researching refrigerant gases (coolant gases) when he accidentally discovered Teflon (polytetrafluoroethylene) in a frozen canister. The white, waxy substance proved to be extremely slippery and heat-resistant, leading to its use in non-stick coatings and countless other applications. The other options (coal gas, petroleum jelly, metal slug) are unrelated to his refrigerant research.

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