Chemistry The Latin word formica means ant. The name formic acid is derived from this Latin word because 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 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 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nylon threads are made of Polyester polymer Polyamide polymer Polysaccharide Polyvinyl polymer Polyester polymer Polyamide polymer Polysaccharide Polyvinyl polymer ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has High nuclear charge Smaller atomic radius High bond dissociation energy Stable half filled 2p sub level High nuclear charge Smaller atomic radius High bond dissociation energy Stable half filled 2p sub level ANSWER DOWNLOAD EXAMIANS APP
Chemistry What are the number of moles of CO2 which contains 16 g of oxygen? 0.2 mole 0.4 mole 0.5 mole 0.25 mole 0.2 mole 0.4 mole 0.5 mole 0.25 mole ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element used for making solar cells is Calcium Sodium Silicon Magnesium Calcium Sodium Silicon Magnesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atomic number is the number equal to Protons Neutrons None of these Electrons Protons Neutrons None of these Electrons ANSWER DOWNLOAD EXAMIANS APP