Chemistry In upper layer of atmosphere ozone is formed by The combination of oxygen molecules Subjecting oxygen to high pressure The action of ultraviolet rays on oxygen The action of nitrogen on oxygen in atmosphere The combination of oxygen molecules Subjecting oxygen to high pressure The action of ultraviolet rays on oxygen The action of nitrogen on oxygen in atmosphere ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical that is used to ripen mangoes is Calcium carbide Calcium sulphide Calcium carbonate Calcium chloride Calcium carbide Calcium sulphide Calcium carbonate Calcium chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following phenomenon is considered responsible for Global Warming? Dry farming Greenhouse effect Fire in coal mines Trade winds Dry farming Greenhouse effect Fire in coal mines Trade winds ANSWER DOWNLOAD EXAMIANS APP
Chemistry In sugar solution, Both are solutes Both are solvents Sugar is solute, water is solvent Sugar is solvent, water is solute Both are solutes Both are solvents Sugar is solute, water is solvent Sugar is solvent, water is solute ANSWER DOWNLOAD EXAMIANS APP
Chemistry Highly toxic gas which causes headache, visual difficulty, paralysis and even death is CO O3 CO2 All of these CO O3 CO2 All of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry What material is used to make electric heater coil ? Nichrome Silver Iron Copper Nichrome Silver Iron Copper ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS