Chemistry Freon' used as refrigerants is chemically Chlorofluoro hydrocarbon Chlorinated hydrocarbon Fluorinated hydrocarbon Fluorinated aromatic compound Chlorofluoro hydrocarbon Chlorinated hydrocarbon Fluorinated hydrocarbon Fluorinated aromatic compound ANSWER DOWNLOAD EXAMIANS APP
Chemistry The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind? 1/3 1/8 1/4 1/6 1/3 1/8 1/4 1/6 ANSWER DOWNLOAD EXAMIANS APP
Chemistry When formaldehyde and potassium hydroxide are heated, we get Methane Acetylene Ethyl formate Methyl alcohol Methane Acetylene Ethyl formate Methyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Spontaneous change is one in there is: A lowering of entropy A lowering of free energy An increase in Internal energy Increase in free energy A lowering of entropy A lowering of free energy An increase in Internal energy Increase in free energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused by SO2 and particulates SO2 and NO2 CO2and CFCs NO2and particulates SO2 and particulates SO2 and NO2 CO2and CFCs NO2and particulates ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following was used as a chemical weapon in the first world war ? Carbon monoxide Water gas Hydrogen cyanide Mustard gas Carbon monoxide Water gas Hydrogen cyanide Mustard gas ANSWER DOWNLOAD EXAMIANS APP
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