Which one of the following is used to make "non-stick" cook-wares ?
A
Polystyrene
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B
Polyethylene terephthalate
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C
Polytetrafluoroethylene
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D
Polyvinyl chloride
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Solution
The correct option is C Polytetrafluoroethylene we know that polytetrafluoroethylene or teflon is chemically inert and resistant to attack by corrosive reagents. Thus it is used in making oil seals and gaskets and also used for non-stick surface coated utensils.