_______________  ions are the most abundant cations within cell fluids.

__________ is prepared by treating  phosphorus with thionyl chloride.

Sodium thiosulphate is colourless crystalline solid having _______________ molecules of water of crystallisation.

___________ions  play several role in the body.

What is the formula for thionyl chloride?

________________ is also take part in the transmission of nerve signals.

What is the formula for chloro sulphonic acid?

_________ can be prepared  in the laboratory by passing  dry chlorine gas over heated  red phosphorus.

____________is the purest form of silica.

The nature of a ______ polymer depends  upon the length  of the chain, extent of cross linking and the size of the alkyl or aryl groups present in  it.