Chemistry Chemical composition of cement is Limestone, Clay and Gypsum Limestone and Gypsum Clay and Gypsum Limestone and Clay Limestone, Clay and Gypsum Limestone and Gypsum Clay and Gypsum Limestone and Clay ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement is made hard with Dehydration Dissociation of water Polymerisation Hydration and dissociation of water Dehydration Dissociation of water Polymerisation Hydration and dissociation of water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Extensively used nitrogenous fertilizer is Ammonium sulphate Nitro-lime Ammonium nitrate Urea Ammonium sulphate Nitro-lime Ammonium nitrate Urea ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone saves the biosphere by absorbing high energy radiations called ________ . Gamma rays Infra-red (IR) X–rays Ultraviolet rays (UV) Gamma rays Infra-red (IR) X–rays Ultraviolet rays (UV) ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following does not form oxyacid ? Chlorine Fluorine Sulphur Nitrogen Chlorine Fluorine Sulphur Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry In a reaction of the type A+B ? C+D one could ensure it to be a first order reaction by : Increasing the temperature Increasing the concentration of a product Adding a catalyst Increasing the concentration of a reactant Increasing the temperature Increasing the concentration of a product Adding a catalyst Increasing the concentration of a reactant ANSWER DOWNLOAD EXAMIANS APP
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