Chemistry The product, 9-nitroanthracene is obtained from anthracene by the action of Nitric acid and acetic acid Nitric acid and acetic anhydride Nitric acid and ethyl alcohol Nitric acid in excess Nitric acid and acetic acid Nitric acid and acetic anhydride Nitric acid and ethyl alcohol Nitric acid in excess ANSWER DOWNLOAD EXAMIANS APP
Chemistry Among the following the hardest metal is Tungsten Gold Platinum Iron Tungsten Gold Platinum Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conduction band electrons have more mobility than holes because they Are lighter Need less energy to move them Have negative charge Experience collision less frequently Are lighter Need less energy to move them Have negative charge Experience collision less frequently ANSWER DOWNLOAD EXAMIANS APP
Chemistry A colloidal system in which a liquid is dispersed in a liquid is called Emulsion Gel Sol Precipitate Emulsion Gel Sol Precipitate 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? 1/4 1/6 1/3 1/8 1/4 1/6 1/3 1/8 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Detergents clean surfaces on the principle of Surface tension Floatation Viscosity Elasticity Surface tension Floatation Viscosity Elasticity ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS