Chemistry Which of the following chemicals is responsible for depletion of ozone layer in the atmosphere? Sulphur dioxide Chlorofluorocarbons Nitrous oxide Carbon dioxide Sulphur dioxide Chlorofluorocarbons Nitrous oxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry A thick paste of cement, sand and water is called Mortar Kiln Concrete R.C.C. Mortar Kiln Concrete R.C.C. ANSWER DOWNLOAD EXAMIANS APP
Chemistry The product, 9-nitroanthracene is obtained from anthracene by the action of Nitric acid in excess Nitric acid and acetic acid Nitric acid and ethyl alcohol Nitric acid and acetic anhydride Nitric acid in excess Nitric acid and acetic acid Nitric acid and ethyl alcohol Nitric acid and acetic anhydride ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a chemical reaction'? Conversion of water into steam Digestion of food Burning of coal Burning of paper Conversion of water into steam Digestion of food Burning of coal Burning of paper ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the maximum Water Vapour content in the atmosphere? 4 to 5 per cent 3 to 4 per cent 2 to 3 per cent 5 to 6 per cent 4 to 5 per cent 3 to 4 per cent 2 to 3 per cent 5 to 6 per cent ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical substance present in bones and teeth is Calcium phosphate Calcium sulphate Calcium borate Calcium chloride Calcium phosphate Calcium sulphate Calcium borate Calcium chloride ANSWER DOWNLOAD EXAMIANS APP
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