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Top most gereral science question asked in government exam related to the chemistry

By Vikash Suyal | General Science | Aug 07, 2015
Here is some top most asked question in genral science related to the chemisttry which may be ask in government exam like sbi po , group c, IAS, PCS etc.

  • Of which alloy the commonly used safety fuse-wire is made? – Alloy of Tin and Lead

  • What is alcohol obtairied in the saponification process? – Glycerol

  • Which antiseptic compound is present in Dettol? – Chloroxylenol

  • By which was the presence of Cobalt. in Vitamin B-12 established for the first time? – Borax-Bead test

  • Which metal can deposit copper from copper sulphate solution? – Iron

  • Which group of gases contribute to the "Green House effect"? – Carbon dioxide and Methane

  • Of which Container radioactive materials should be kept? – Pb

  •  Which is not an anaesthetic agent in surgical operations? – Acetone

  • What is the percentage of Nitrogen, present in ammonium sulphate? – 21%

  • Which is the nuclear particle having no mass and no charge, but only spin? – Neutrino

  • The pH of fresh milk is 6. When it turns sour, what will be the pH? – Less than 6

  • What is a compound that is a white solid which absorbs water vapour from the air? – Calcium chlorid

  •  To which product of equivalent weight and valency of an element is equal? – Atomic weight

  • Which element forms the highest number of compounds in the periodic table? – Silicon

  • What is the name of gas which is present in both the natural gas and the biogas? – Methane

  • How many elements are in the second period of the periodic table? – Eight

  • How does addition of ethylene dibromide help to petrol? – Elimination of lead oxide

  • What do we call the process of separation of pure water from impurities? – Distillation

  • With which liqued is anomalous expansion associated? – Water

  • What is a tick paste of cement, sand and water called? – Mortar

  • Ethanol containing 5% water By which name is it known? – Rectified spirit

  • Which is used to dilute oxygen in the gas cylinders used by divers? – Helium

  • What do cathode rays caise when obstructed by metal? –emission of X-rays

  • Which gase is supporter of combustion? – Oxygen

  • On heating, Gypsum loses certain percentage of its water content and what does it become? – Plaster of Paris

  • A liquid initially contracts when cooled down to 4 degree Celsius bu

  • How must have metals used to make wires for safety fuses? – Low resistivity and low melting point

  • Sodium stearate is a salt and how is it used? – To make soap

  • Which are the two main constituents of granite? – Iron and silica

  • Which method of water purification does not kill microorganism? – Filtration

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