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Metal and Metallurgy

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Metal and Metallurgy

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  1. For More Live Classes& PDF https://www.yuvaplus.in

  2. Welcome to West Bengal’s 1st Learning Mate For More Live Class & PDF  https://www.yuvaplus.in yuvaplus Subscribe Our Youtube Channel:

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  5. METAL & METALLURGY PART-6 For More Live Classes& PDF https://www.yuvaplus.in

  6. Lead Atomic no – 82 Mass number – 207 Occurrence and extraction: Lead occurs in nature mainly in the form of its ores. There are various ores of it exist in nature like galena(PbS), Cerussite(PbCO3), anglesite(PbSO4) etc. The main ore is galena (PbS) from which lead is extracted by a self-reduction process. Lead is the most stable element among all the elements Properties: Lead is a soft bluish grey metal and it is used as a paper maker. It is a heavy metal It does not react with dry air but reacts with moist air and forms the layer of hydroxide first and then of carbonate For More Live Classes& PDF https://www.yuvaplus.in

  7. Uses of Lead: Lead is a very useful metal and it is used in making alloys, lead accumulators, lead shots(bullet) and coverings of electric cables, lead chambers, lead pipes, lead- arsenic bullets, in nuclear research etc. Compounds Lead Oxide(PbO): This is a volatile yellowish compound which is called Litharge. It is an amphoteric oxide and it is used in rubber industry, in the manufacture of flint glasses and storage batteries Lead carbonate(PbCO3): This is also called white lead due to its white colour and it is insoluble in water but soluble in HCl and HNO3. It is basically used in making white pigment For More Live Classes& PDF https://www.yuvaplus.in

  8. Lead acetate[Pb(CH3COO)2]:: This is also called SUGAR OF LEAD and it is white crystalline sugar like substance soluble in water and its crystals are sweet in taste Alloys Composition Type metal Pb(75%), Sb(20%) Sn(6%) Solder Pb(50-30%) Sn(50-70%) Pewter Sn(75%) Pb(25%) For More Live Classes& PDF https://www.yuvaplus.in

  9. Uranium Atomic no – 92 Mass no – 238 Element – f-block (radioactive) Occurrence and extraction: It is a rarely found element in nature and it does not occur in free state. Almost all minerals of it is radioactive. The main ore of uranium is pitch blende from which it is extracted Uranium is also called METAL OF HOPE Uses: Uranium carbide is used as a catalyst in production Of ammonia by Haber’s process. Uranium is used in the production Of nuclear energy For More Live Classes& PDF https://www.yuvaplus.in

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