Chemistry The acid rain destroys vegetations because it contains Ozone Nitric acid Sulphuric acid Carbon monoxide Ozone Nitric acid Sulphuric acid Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of 'laughing gas' is Nitric oxide Nitrous oxide Nitrogen dioxide Nitrogen pentoxide Nitric oxide Nitrous oxide Nitrogen dioxide Nitrogen pentoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following metals is used to galvanise iron ? Copper Mercury Lead Zinc Copper Mercury Lead Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following substance's smell is similar to Ethanoic acid? Vinegar Lemon Kerosene Tomato juice Vinegar Lemon Kerosene Tomato juice ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element used for making solar cells is Calcium Magnesium Sodium Silicon Calcium Magnesium Sodium Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brass gets discoloured in air due to constant exposure in presence of: Hydrogen sulphide Aluminium phosphide Aluminium sulphide Hydrogenated wafers Hydrogen sulphide Aluminium phosphide Aluminium sulphide Hydrogenated wafers ANSWER DOWNLOAD EXAMIANS APP
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