Chemistry Earth’s atmosphere is an envelope of gases extending to a height of 200 km 100 km 300 km 150 km 200 km 100 km 300 km 150 km ANSWER DOWNLOAD EXAMIANS APP
Chemistry The Latin word formica means ant. The name formic acid is derived from this Latin word because this corrosive acid is secreted by ants to drive away their enemies this acid, in ancient times, was used to eliminate ant-hills this acid was first obtained by the distillation of ants ants are attracted by the odour of this acid this corrosive acid is secreted by ants to drive away their enemies this acid, in ancient times, was used to eliminate ant-hills this acid was first obtained by the distillation of ants ants are attracted by the odour of this acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element which is used for vulcanizing rubber Sulphur Bromine Phosphorus Silicon Sulphur Bromine Phosphorus Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is a naturally occuring noble gas Argon Potassium Sodium Boron Argon Potassium Sodium Boron ANSWER DOWNLOAD EXAMIANS APP
Chemistry For generation of biogas, the materials commonly used are Aquatic plants Crop residues Animal wastes Forest residues Aquatic plants Crop residues Animal wastes Forest residues ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main constituent of natural gas is Propane Ethane Butane Methane Propane Ethane Butane Methane ANSWER DOWNLOAD EXAMIANS APP
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