Chemistry The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is oxygen methane helium ozone oxygen methane helium ozone ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who modified Bohr's theory by introducing elliptical orbits for electron path Hund Thomson Rutherford Sommerfeld Hund Thomson Rutherford Sommerfeld ANSWER DOWNLOAD EXAMIANS APP
Chemistry Peptization is a process of Purification of colloids Protection of colloidal solution Dispersing precipitates into colloidal solution Precipitation of colloidal particles Purification of colloids Protection of colloidal solution Dispersing precipitates into colloidal solution Precipitation of colloidal particles ANSWER DOWNLOAD EXAMIANS APP
Chemistry Adding Cl2 to benzene in the presence of AlCl3 is an example of : None of the options Elimination reaction Addition reaction Substitution reaction None of the options Elimination reaction Addition reaction Substitution reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry Commercial Vaseline is derived from Plant gums Wool wax Coal tar Petroleum Plant gums Wool wax Coal tar Petroleum ANSWER DOWNLOAD EXAMIANS APP
Chemistry The antiseptic compound present in dettol is Enloroxylenol Biothional Cresol Iodine Enloroxylenol Biothional Cresol Iodine ANSWER DOWNLOAD EXAMIANS APP
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