A. Unstable B. Coloured C. Insoluble in water D. Soluble in water

A. Fusible B. Not easily reduced by the carbon C. Not easily reduced by the hydrogen D. Strongly basic

A. Electrolysis B. Metal displacement C. Smelting D. Roasting

A. Atomophil B. Lithophil C. Calcophil D. Sidrophil

A. Cobalt B. Nickel C. Aluminum D. Iron

A. Sodium B. Magnesium C. Calcium D. Potassium

A. Silver B. Aluminum C. Magnesium D. Sodium

A. Mercury B. Sodium C. Aluminum D. Zinc

A. Stronger oxidant B. Stronger reductant C. Easily reduced D. Can’t be predicted