Give the reasons for the following:(i) Zinc is used in galvanisation and dry cells.(ii) Nitric acid can be stored in aluminium containers.(iii) Aluminium oxide cannot be reduced by carbon.(iv) A neutral gas other than oxygen is formed at the anode during electrolysis of fused alumina.(v) Extraction of aluminium was very difficult in the beginning.(vi) Carbon anodes are used in the electrolytic extraction of aluminium.(vii) Galvanized metal ions should not be used for storing food.

Give the reasons for the following:(i) Zinc is used in galvanisation a

1.	Give the reasons for the following:(i) Zinc is used in galvanisation and dry cells.(ii) Nitric acid can be stored in aluminium containers.(iii) Aluminium oxide cannot be reduced by carbon.(iv) A neutral gas other than oxygen is formed at the anode during electrolysis of fused alumina.(v) Extraction of aluminium was very difficult in the beginning.(vi) Carbon anodes are used in the electrolytic extraction of aluminium.(vii) Galvanized metal ions should not be used for storing food.
Answer» Give the reasons for the following: (i) Zinc is used in galvanisation and dry cells. (ii) Nitric acid can be stored in aluminium containers. (iii) Aluminium oxide cannot be reduced by carbon. (iv) A neutral gas other than oxygen is formed at the anode during electrolysis of fused alumina. (v) Extraction of aluminium was very difficult in the beginning. (vi) Carbon anodes are used in the electrolytic extraction of aluminium. (vii) Galvanized metal ions should not be used for storing food.