Chemistry- Questions and Answers 29

616. Diamond is chemically:
Pure carbon

617. The main chemical substance present in the bones and teeth of animal is:
Calcium phosphate

618. Father of the Indian Chemical Industry:
Acharya Prafulla Chandra Ray

619. Bosch process is used in the industrial preparation of:
Hydrogen

620. The alloy used for making the Oscar statue:
Britanium

621. The metal known as 'Rainbow metal':
Iridium

622. The scientific name of Vitamin B 9 is:
Folic acid

623. The alkali most commonly used to make bathing soap:
Potassium hydroxide

624. Elements showing properties of both metals and non-metals:
Metalloids
625. Metals & Ores

Metals & Ores
Metals	Ores
Aluminium (Al)	Bauxite, Corundum, felspar, Cryolite,Kaolin
Antimony (Sb)	Stibnite
Barium(Ba)	Barite, Witherite
Cadmium (Cd)	Greenockite
Calcium (Ca)	Chalk, Quicklime, Calcite, Dolomite, Gypsum, Asbestus
Chromium (Cr)	Chromite
Copper (Cu)	Malachite, Chalcocite, Chalcopyrite,Cuprite
Gold (Au)	Quartz, Calaverite, Silvenites
Iron (Fe)	Hematite, Magnetite, Lemonite, Copper pyrites
Lead (Pb)	Galena
Magnesium(Mg)	Magnesite, Dolomite, Epsom salt, Carnalite
Manganese(Mn)	Pyrolusite
Mercury (Hg)	Cinnabar
Potassium (K)	Camalite, Sylvite, Potash
Silver (Ag)	Argentite
Sodium (Na)	Rock Salt, Trona, Borax
Strontium (Sr)	Strontianite, Silestine
Tin(Sn)	Cassiterite
Zinc (Zn)	Zincite, Eerulinite , Calamine
Uranium (U)	Uraninite
Tungsten (W)	Wolframite, Scheelite
Nickel (Ni)	Pentlandite, Milarite
Beryllium (Be)	Beryl

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