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FSc Chemistry Book2, CH 3, LEC 15: Physical Properties of Vitreous Silica

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This video lecture from Group IIIA and Group IVA Elements  (F.Sc. second year Chemistry) covers physical properties of vitreous silica which is a glass like, amorphous form of crystalline silica. Vitreous silica is transparent, thermally stable, has lower thermal expansion, is refractory, hard, brittle, insoluble in water and wear resistant. Find more e-learning material and educational video lectures in Urdu at These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab.

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