A typical 70kg man contains about _________ of potassium.
170g
130g
150g
180g
_________ can be prepared in the laboratory by passing dry chlorine gas over heated red phosphorus.
Phosphorus trichloride
Phosphorus pentachloride
Phosporyl chloride
None of the above
____________ions are found primarily on the outside of cells which are located in blood plasma and in the interstitial fluid surrounding the cells.
Sodium
Potassium
Magnesium
All the above
Which one of the following is vital to living beings?
__________ regulate the flow of water across cell membrane and in the transport of sugars and amino acids into cells.
Sodium thiosulphate is colourless crystalline solid having _______________ molecules of water of crystallisation.
One
Two
Five
What is the formula for sulphuryl chloride?
SO2Cl2
SOCl
Cl.SO2Cl
___________ions play several role in the body.
__________ is prepared by treating phosphorus with thionyl chloride.
What is the formula for chloro sulphonic acid?
Cl.SO3H
