A) Polythene
B) Teflon
C) Bakelite
D) Nylon-66
Correct Answer: B
Solution :
Teflon is tetra fluoroethylene. It is used as non-stick coating on cook wares. It is very resistant due to strong Carbon Fluorine bonds. Aqua regia is a mixture of Nitric acid and Hydrochloric acid in the ratio of 1: 3.You need to login to perform this action.
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