Give reason
A mixture of dilute NaOH and aluminium pieces is used is to open drain.

Give reason Diamond is used as an abrasive.

Give reason Conc HNO_3 can be transported in aluminium container

Give reasons. Paper by itself catches fire easily whereas a piece of paper wrapped around an aluminium pipe does not.

Give reasons: (C)Aluminium is highly reactive metal,yet it is used to make utensils for cooking.

Give reason why does a dry cell become dead after long time even if has not been used?

What happens when Aluminium is treated with dilute NaOH?

Give reasons: Rusting of iron pipe can be prevented by joining it with a piece of magnesium.

Give reason: Ce(4+) is used as an oxidising agent in volumetric analysis.