Chemistry The pH of lemon juice is expected to be Nothing can be predicted More than 7 Equal to 7 Less than 7 Nothing can be predicted More than 7 Equal to 7 Less than 7 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is a sublime substance? Iodine Potassium Iodide Sugar Table salt Iodine Potassium Iodide Sugar Table salt ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone saves the biosphere by absorbing high energy radiations called ________ . X–rays Gamma rays Ultraviolet rays (UV) Infra-red (IR) X–rays Gamma rays Ultraviolet rays (UV) Infra-red (IR) ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cooking gas is a mixture of Carbon monoxide and carbon dioxide Methane and ethylene Butane and propane Carbon dioxide and oxygen Carbon monoxide and carbon dioxide Methane and ethylene Butane and propane Carbon dioxide and oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a method of preparing oxygen? Fractional distillation of liquid air Decomposition of potassium permanganate Electrolysis of water Decomposition of manganese dioxide Fractional distillation of liquid air Decomposition of potassium permanganate Electrolysis of water Decomposition of manganese dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is caused by the higher concentration of Nitrogen and Phosphorous ? Acidity Hardness Eutrophication Alkalinity Acidity Hardness Eutrophication Alkalinity ANSWER DOWNLOAD EXAMIANS APP
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