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ग्रहों की स्थिति

Q1. दूरी के अनुसार ग्रहों की स्थिति ? बुध (Mercury) शुक्र (Venus) पृथ्वी (Earth) मंगल (Mars) वृहस्पति (Jupiter) शनि (Saturn) यूरेनस (Uranus)...

-Teflon is manufactured by heating tetrafluoroethene with a free radical or persulfate catalyst at high pressures. 

-It is chemically inert and resistant to attack by corrosive reagents.

-It is used in making oil seals and gaskets and also used for non – stick surface coated utensils.

-Another advantage of Teflon is its versatility, and the range of applications over so many products and different industries for this material is staggering.


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