KERALA PSC / CHEMISTRY / IMPORTANT ELEMENTS / ZINC / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY

 

KERALA PSC / CHEMISTRY / IMPORTANT ELEMENTS / ZINC / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY

KERALA PSC / CHEMISTRY / IMPORTANT ELEMENTS / ZINC / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY

·      The most important ore of zinc is zinc blende. Calamine and zincite are other important ores of zinc

·      Zinc is used in galvanization and in dry cells

·      Zinc is used in dye-casting because of its low melting point and high tensile strength

·      Zinc, as a reducing agent, is used in the manufacture of perfumes and synthetic drugs

·      Brass, an alloy of zinc with copper, is used in catridges, musical instruments and electrical fittings

·      Bronze, an alloy of copper, zinc and tin, is used in statues

·      German silver, an alloy of zinc with copper and nickel, is used in jewellery and coins

KERALA PSC / CHEMISTRY / IMPORTANT ELEMENTS / ZINC / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY