जॉइन Examsbookउत्तर : 4. "Nylon"
The first synthetic fibre made by man was ____ ?5
प्र: The first synthetic fibre made by man was ____ ?
- 1Rayonfalse
- 2Terycottfalse
- 3Polyesterfalse
- 4Nylontrue
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उत्तर : 4. "Nylon"
व्याख्या :
Answer: D) Nylon Explanation: