Chemistry The process of removing calcium and magnesium from hard water is known as Filtration Water softening Flocculation Sedimentation Filtration Water softening Flocculation Sedimentation ANSWER DOWNLOAD EXAMIANS APP
Chemistry All isotopes of the same element have ________ The same atomic number and the atomic mass Different atomic numbers and different atomic mass The same atomic number but different atomic masses Different atomic numbers and the same atomic mass The same atomic number and the atomic mass Different atomic numbers and different atomic mass The same atomic number but different atomic masses Different atomic numbers and the same atomic mass ANSWER DOWNLOAD EXAMIANS APP
Chemistry Synthetic detergents are prepared from Glycerides Hydrocarbons of petroleum Potassium salts of higher fatty-acids Sodium salts of higher fattyacids Glycerides Hydrocarbons of petroleum Potassium salts of higher fatty-acids Sodium salts of higher fattyacids ANSWER DOWNLOAD EXAMIANS APP
Chemistry The common name of sodium bicarbonate is Soda lime Baking powder Baking soda Soda ash Soda lime Baking powder Baking soda Soda ash ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone saves the biosphere by absorbing high energy radiations called ________ . X–rays Ultraviolet rays (UV) Gamma rays Infra-red (IR) X–rays Ultraviolet rays (UV) Gamma rays Infra-red (IR) ANSWER DOWNLOAD EXAMIANS APP
Chemistry An example of replenishable energy source is– Lignite Biomass Petroleum Coal Lignite Biomass Petroleum Coal ANSWER DOWNLOAD EXAMIANS APP
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