Chemistry Brass gets discoloured in air due to constant exposure in presence of: Aluminium sulphide Hydrogenated wafers Aluminium phosphide Hydrogen sulphide Aluminium sulphide Hydrogenated wafers Aluminium phosphide Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one element has the highest electronegativity value Chlorine Fluorine Nitrogen Lithium Chlorine Fluorine Nitrogen Lithium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ore which is found in abundance in India is monazite magnetite bauxite fluorspar monazite magnetite bauxite fluorspar ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is a mixture of potassium nitrate, powdered charcoal and sulphur called? Cement Paint Glass Gun powder Cement Paint Glass Gun powder ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most common cause of pollution of air is Smoke Carbon monoxide Carbon dioxide Sulphur dioxide Smoke Carbon monoxide Carbon dioxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Tetra ethyle lead (TEL) is A reductant A catalyst in burning fossil fuel An antioxidant An antiknock compound A reductant A catalyst in burning fossil fuel An antioxidant An antiknock compound ANSWER DOWNLOAD EXAMIANS APP
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