Chemistry Iron and manganese present as pollutants in water cannot be removed by________ Ion exchange process Lime soda process or manganese zeolite process Oxidation followed by settling and filtration Chlorination Ion exchange process Lime soda process or manganese zeolite process Oxidation followed by settling and filtration Chlorination ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the most commonly used substance in fluorescent tubes? Mercury oxide and neon Sodium oxide and argon Mercury vapour and argon Sodium vapour and neon Mercury oxide and neon Sodium oxide and argon Mercury vapour and argon Sodium vapour and neon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Tetra ethyle lead (TEL) is A catalyst in burning fossil fuel An antiknock compound An antioxidant A reductant A catalyst in burning fossil fuel An antiknock compound An antioxidant A reductant ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used to iodise common salt ? Potassium iodide Iodine Potassium iodate Sodium iodide Potassium iodide Iodine Potassium iodate Sodium iodide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper substances when exposed to air gains a green coating due to the formation of: CuSO4 CuO CuCO3 Cu(OH)2 Cu(NO3)2 CuSO4 CuO CuCO3 Cu(OH)2 Cu(NO3)2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of g-molecule of oxygen in 6.02 x 1024CO molecules is 10 gram of molecule 5 gram of molecule 0.5 gram of molecule 1 gram of molecule 10 gram of molecule 5 gram of molecule 0.5 gram of molecule 1 gram of molecule ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS