Chemistry An atom of an element has atomic number 17 and mass number 36. The number of neutrons in its nucleus is 17 36 53 19 17 36 53 19 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following substance's smell is similar to Ethanoic acid? Kerosene Lemon Tomato juice Vinegar Kerosene Lemon Tomato juice Vinegar ANSWER DOWNLOAD EXAMIANS APP
Chemistry Permanent – hardness of water may be removed by addition of Lime Alum Sodium carbonate Potassium Permangante Lime Alum Sodium carbonate Potassium Permangante ANSWER DOWNLOAD EXAMIANS APP
Chemistry Major portion of the earth’s crust is mainly constituted by Silicon and Aluminium Silicon and Iron Oxygen and Silicon Oxygen and Iron Silicon and Aluminium Silicon and Iron Oxygen and Silicon Oxygen and Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Impure camphor is purified by Fractional crystallisation Steam distillation Fractional distillation Sublimation Fractional crystallisation Steam distillation Fractional distillation Sublimation ANSWER DOWNLOAD EXAMIANS APP
Chemistry For a spontaneous chemical process, the free energy change is Zero Positive Depends on whether the reaction is exothermic or endothermic Negative Zero Positive Depends on whether the reaction is exothermic or endothermic Negative ANSWER DOWNLOAD EXAMIANS APP
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