Chemistry The metallic constituents of hard water are : Iron, tin and calcium Calcium, magnesium and iron Magnesium, calcium and tin Magnesium, tin and iron Iron, tin and calcium Calcium, magnesium and iron Magnesium, calcium and tin Magnesium, tin and iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Bakelite is a co-polymer of Phenol and Acetaldehyde Benzaldehyde Formaldehyde Cinnaldehyde Acetaldehyde Benzaldehyde Formaldehyde Cinnaldehyde ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper is refined by Zone refining Electrolysis Roasting Oxidation Zone refining Electrolysis Roasting Oxidation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silver gets corroded due to ________ in air. Hydrogen Sulphide Carbon dioxide Nitrogen Oxygen Hydrogen Sulphide Carbon dioxide Nitrogen Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the toxic heavy metals is found in modern tannery industries ? Lead Nickel Zinc Chromium Lead Nickel Zinc Chromium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which component referred to as 'Milk sugar'? Lactose Sucrose Galactose Maltose Lactose Sucrose Galactose Maltose ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS