সিল্ভার কাকে বলে?নাইলন কে নন সেলুলোজিক তন্তুবলে কেন
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- Silver (Ag), chemical element, a white lustrous metal valued for its decorative beauty and electrical conductivity. Silver is located in Group 11 (Ib) and Period 5 of the periodic table, between copper (Period 4) and gold (Period 6), and its physical and chemical properties are intermediate between those two metals.
- not derived from or containing cellulose: Nylon is a noncellulosic fiber. ... Cellulose is a fibrous material of plant Origin and the basis of all natural and man-made cellulosic fibers. The natural cellulosic fibers include cotton, flax, hemp, jute, and ramie
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