Fill up the blanks with words given in the brackets

Question

Fill up the blanks with words given in the brackets

1. The metal used to build aeroplane body is ____. (Al / Cu) 
2. Reducing agent used in thermite process is ____. (Al / Zn) 
3. Bell metal contains ____ + _____ (Cu+Sn) / (Al + Mg)
4. Bauxite is ____. (Al2O₃, 2H₂O / Cu₂S, FeS₂) 
5. Extraction of metal from its ore is ____ process. (oxidation / reduction) 
6. In the cathodic protection of iron Mg acts as ____. (cathode / anode)

Answer

1. The metal used to build aeroplane body is Aluminium (Al).
2. The reducing agent used in the thermite process is Aluminium (Al).
3. Bell metal contains Copper (Cu) and Tin (Sn) – the typical composition is around 80% Cu and 20% Sn.
4. Bauxite is Al₂O₃, 2H₂O.
5. Extraction of metal from its ore is Reduction process.
6. In the cathodic protection of iron, Mg acts as the anode.