Chemistry Supersonic jet causes pollution by thinning of O 2 layer SO2 layer CO2 layer O3 layer O 2 layer SO2 layer CO2 layer O3 layer ANSWER DOWNLOAD EXAMIANS APP
Chemistry A substance which readily forms colloidal solution in contact with water is called Extrinsic colloid Hydrophobic colloid Hydrophilic colloid Associated colloid Extrinsic colloid Hydrophobic colloid Hydrophilic colloid Associated colloid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The two metal ions that cause hardness to water are: Calcium, Magnesium Sodium, Calcium Sodium, Magnesium Sodium, Potassium Calcium, Magnesium Sodium, Calcium Sodium, Magnesium Sodium, Potassium ANSWER DOWNLOAD EXAMIANS APP
Chemistry A powerful eye irritant present in smog is Carbon dioxide Peroxyacetyl nitrate Nitric oxide Sulphur dioxide Carbon dioxide Peroxyacetyl nitrate Nitric oxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silver gets corroded due to ________ in air. Carbon dioxide Oxygen Hydrogen Sulphide Nitrogen Carbon dioxide Oxygen Hydrogen Sulphide Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry In galvanization, iron is coated with Zinc Copper Tin Nickel Zinc Copper Tin Nickel ANSWER DOWNLOAD EXAMIANS APP
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