Melamine plastic crockery is a copolymer of:
Show Hint
- \( {HCHO} \) and melamine
- \( {HCHO} \) and ethylene
- Melamine and ethylene
- None of these
The Correct Option is A
Solution and Explanation
Step 1: Understanding melamine plastic. Melamine plastic is a thermosetting polymer known for its high durability, heat resistance, and lightweight nature, commonly used in kitchenware and crockery.
Step 2: Identifying the copolymer composition. Melamine-formaldehyde resin is formed by the polymerization of melamine and formaldehyde (HCHO). The reaction results in a cross-linked polymer network that gives melamine plastic its strong and heat-resistant properties: \[ {Melamine} + {Formaldehyde} \rightarrow {Melamine-Formaldehyde Resin} \]
Step 3: Eliminating incorrect Option.
- Option A: Correct, as melamine plastic is made from melamine and formaldehyde.
- Option B: Incorrect, since ethylene is not involved in melamine plastic formation.
- Option C: Incorrect, as ethylene does not participate in this polymerization.
- Option D: Incorrect, since melamine plastic is a known polymer of melamine and formaldehyde.
Hence, the correct answer is (A) \( {HCHO} \) and melamine.
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