Chemistry The metal ion present in Vitamin B12 is Nickel Cobalt Zinc Iron Nickel Cobalt Zinc Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is commonly used for pulp bleaching in the paper industry? Glucose isomerase Mild sulphuric acid Iodine and water Hydrogen peroxide Glucose isomerase Mild sulphuric acid Iodine and water Hydrogen peroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The buffer action of blood is due to the presence of HCI and NaCI [HCO3]– and H2CO3 CI– and [HCO3]– CI– and [CO3]2– HCI and NaCI [HCO3]– and H2CO3 CI– and [HCO3]– CI– and [CO3]2– ANSWER DOWNLOAD EXAMIANS APP
Chemistry In ice, the number of hydrogen bonds per water molecule is 2 1 4 8 2 1 4 8 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is oxygen methane helium ozone oxygen methane helium ozone ANSWER DOWNLOAD EXAMIANS APP
Chemistry In which of the following ions , the colour is not due to d-d transition ? [Ti(H2O)6]3+ [CoF6]3+ [Cu(NH3)4]2+ [CrO4]2− [Ti(H2O)6]3+ [CoF6]3+ [Cu(NH3)4]2+ [CrO4]2− ANSWER DOWNLOAD EXAMIANS APP
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