v A gas has property of indefinite expansion and neither a fixed volume nor a fixed shape.
v Water are used in the production of biogas.
v Sodium benzoid is used for the preservation of grains.
v The main constituents of table salt are sodium and chlorine.
v Carbon atoms are arranged in a tetrahedral configuration in diamond.
v Bakellite is a thermo-setting plastic, but not a natural one.
v An excited hydrogen atoms return to the ground state they emit protons.
v Atoms are composed of electrons and nuclei (i.e.) protons and neutrons.
v Zinc and copper make the terminals of the torch cell.
v Cobalt is useful in making rent-resistant alloys.
v In cold countries, alcohol is preferred to mercury as a thermometer liquid because alcohol has a very low freezing point.
v Gasohol is a combination of gasoline and ethyl alcohol.
v A petrol fire can be test extinguished by using water and halogenated hydro carbons.
v The electronegativity of elements decrease while going down is a group in the periodic table.
v Sodium would turn when put into water.
v Calcium is extracted from electrolysis.
v Cathode rays are deflected by electric and magnetic field.
v Hydrogens cannot be used as an automobile fuel because of its highly explosive nature.
v The coolest used in fast brudor reactors is generally liquid sodium.
v The energy from wood can be extracted more efficiency through the process of carbonization, pylosis and gasification.
v Chlorobenzene reacts with chloral to give DDT.
v Metals are better conductors of heat because of ionic bonding.
v Nylon, Poly ethylene and Teflon are the thermoplastic polymers.
I think it will be useful for all of you. So prepare well and do your
exams better and easy.
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