i. Alloy of sodium with mercury.ii. Molecular formula of common ore

1.	i. Alloy of sodium with mercury.ii. Molecular formula of common ore of aluminium.iii. The oxide that forms salt and water by reacting with both acid and base.iv. device used for grinding an ore.v. The nonmetal having electrical conductivity.vi. The reagent that dissolves noble metals.
Answer» i. Silver amalgam. ii. Al₂O₃.nH₂O iii. Aluminium oxide (Al₂O₃). iv. The device used for grinding an ore is grinding mill. v. Graphite having electrical conductivity. vi. Aqua regia is the reagent that dissolves noble metals like gold and platinum.

i. Alloy of sodium with mercury.ii. Molecular formula of common ore of aluminium.iii. The oxide that forms salt and water by reacting with both acid and base.iv. device used for grinding an ore.v. The nonmetal having electrical conductivity.vi. The reagent that dissolves noble metals.

Answer»

i. Silver amalgam.

ii. Al₂O₃.nH₂O

iii. Aluminium oxide (Al₂O₃).

iv. The device used for grinding an ore is grinding mill.

v. Graphite having electrical conductivity.

vi. Aqua regia is the reagent that dissolves noble metals like gold and platinum.