Chemistry The first metal used by man was bronze iron gold copper bronze iron gold copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry White lung cancer' is caused by Silica Textiles Asbestos Paper Silica Textiles Asbestos Paper ANSWER DOWNLOAD EXAMIANS APP
Chemistry The smog is essentially caused by the presence of Oxides of N and S O2 and N2 O2 and O3 O3 and N2 Oxides of N and S O2 and N2 O2 and O3 O3 and N2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which is abundant in Gobar gas? Oxygen Carbon dioxide Methane Hydrogen Oxygen Carbon dioxide Methane Hydrogen 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 The Latin word formica means ant. The name formic acid is derived from this Latin word because ants are attracted by the odour of this acid this acid, in ancient times, was used to eliminate ant-hills this corrosive acid is secreted by ants to drive away their enemies this acid was first obtained by the distillation of ants ants are attracted by the odour of this acid this acid, in ancient times, was used to eliminate ant-hills this corrosive acid is secreted by ants to drive away their enemies this acid was first obtained by the distillation of ants ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS