Chemistry Permanent – hardness of water may be removed by addition of Alum Potassium Permangante Sodium carbonate Lime Alum Potassium Permangante Sodium carbonate Lime ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a secondary pollutant ? PAN SO2 NO CO PAN SO2 NO CO ANSWER DOWNLOAD EXAMIANS APP
Chemistry 1 carat of diamond is equal to 100 mg 200 g 100 g 200 mg 100 mg 200 g 100 g 200 mg ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that causes suffocation and death when coal or coke is burnt in a closed room is Methane Carbon monoxide Carbon di-oxide Ethane Methane Carbon monoxide Carbon di-oxide Ethane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following elements is non-radioactive ? Uranium Thorium Zirconium Plutonium Uranium Thorium Zirconium Plutonium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chief constituent of vinegar is Salycylic acid Formic acid Acetic acid Oxalic acid Salycylic acid Formic acid Acetic acid Oxalic acid ANSWER DOWNLOAD EXAMIANS APP
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