Chemistry Oxygen has (+) oxidation number only in N2O OF2 H2O (2) C12O N2O OF2 H2O (2) C12O ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element with highest ionization potential is Oxygen Carbon Boron Helium Oxygen Carbon Boron Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone saves the biosphere by absorbing high energy radiations called ________ . X–rays Gamma rays Infra-red (IR) Ultraviolet rays (UV) X–rays Gamma rays Infra-red (IR) Ultraviolet rays (UV) ANSWER DOWNLOAD EXAMIANS APP
Chemistry A thick paste of cement, sand and water is called Concrete R.C.C. Mortar Kiln Concrete R.C.C. Mortar Kiln ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not a fertilizer? Potassium nitrate Calcium ammonium nitrate Ammonium sulphate Calcium sulphate Potassium nitrate Calcium ammonium nitrate Ammonium sulphate Calcium sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is 'milk of magnesia' chemically? Magnesium carbonate Sodium bicarbonate Magnesium hydroxide Calcium hydroxide Magnesium carbonate Sodium bicarbonate Magnesium hydroxide Calcium hydroxide ANSWER DOWNLOAD EXAMIANS APP
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