Give reasons: (b)Sodium,potassium and lithium are stored under oil.

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 two uses of potassium permanganate.

Give reasons :- A wooden table should be called a solid.

Give reasons: [COF_6]^(3-) is a high spin complex ion.

State as to why (b) Sodium is found to be more usefull than Potassium.

Give reasons for each of the following oberva-tions: Even under mild conditions aniline on bromi-natoin gives 2,4,6, tribromo aniline.

Give reasons why carbon is tetravalent.