GK Chemistry Quiz 06

1.Temporary hardness is due to the presence of





2.Which one o the following metals evolves hydrogen only with stream ( not with cold water)?





3.The number of protons’ and neutrons respectively in the nucleus of tritium are





4.The metal which evolves hydrogen with sodium hydroxide and with acid is





5.The drying agent used for ammonia gas is





6.The gas used in balloons in the place of hydrogen is





7.Hydrolith is





8.Radio active isotopes of hydrogen





9.Tincture iodine is a solution of





10.which of the following types of water gives later easily with soap?







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