Chemistry Combustion of a candle is a/an Photochemical reaction Exothermic reaction Endothermic reaction Physical change Photochemical reaction Exothermic reaction Endothermic reaction Physical change ANSWER DOWNLOAD EXAMIANS APP
Chemistry Magnetite is 2Fe2O3. 3H2O FeCO3 Fe2O3 Fe3O4 2Fe2O3. 3H2O FeCO3 Fe2O3 Fe3O4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that is used in the manufacture of vanaspati ghee is : Oxygen Carbon dioxide Hydrogen Nitrogen Oxygen Carbon dioxide Hydrogen Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following type of coal has the lowest proportion of volatile matter ? Lignite Bituminous Peat Anthracite Lignite Bituminous Peat Anthracite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Permanent – hardness of water may be removed by addition of Lime Sodium carbonate Alum Potassium Permangante Lime Sodium carbonate Alum Potassium Permangante ANSWER DOWNLOAD EXAMIANS APP
Chemistry The absolute temperature of a gas is doubled and the pressure is reduced to half, the volume of the gas Will be doubled Will increase four-fold Remains unchanged Will be reduced to half Will be doubled Will increase four-fold Remains unchanged Will be reduced to half ANSWER DOWNLOAD EXAMIANS APP
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