Chemistry Which of the following chemical materials is responsible for the depletion of ozone layer in the atmosphere ? Chlorofluorocarbon Nitrous oxide Sulphur dioxide Carbon dioxide Chlorofluorocarbon Nitrous oxide Sulphur dioxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is found in kidney stones? Sodium oxalate Sodium chloride Calcium acetate Calcium oxalate Sodium oxalate Sodium chloride Calcium acetate Calcium oxalate ANSWER DOWNLOAD EXAMIANS APP
Chemistry An alloy used in making heating elements for electric heating device is Solder German Silver Nichrome Alloy Steel Solder German Silver Nichrome Alloy Steel ANSWER DOWNLOAD EXAMIANS APP
Chemistry Domestic cooking gas consists mostly of Hydrogen and acetylene Ethylene and carbon monoxide Methane and ethane Liquified butane and isobutane Hydrogen and acetylene Ethylene and carbon monoxide Methane and ethane Liquified butane and isobutane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant metal in the Earth’s crust is Zinc Copper Aluminium Iron Zinc Copper Aluminium Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the simplest aromatic hydrocarbon Aspirin Benzene Chloride Picric acid Aspirin Benzene Chloride Picric acid ANSWER DOWNLOAD EXAMIANS APP
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