A typical 70kg man contains about ____________ of sodium.
50g
70g
90g
60g
_________ 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
The viscosity of ____________ oils does not change much with temperature.
Silicone
Silicon dioxide
Silica
Silicates
What is the formula for thionyl chloride?
SO2Cl2
SOCl
SOCl2
None of the above.
___________ions play several role in the body.
Sodium
Potassium
Magnesium
All the above
Which one of the following is vital to living beings?
The monohydrate changes into anhydrous salt at ______________K which on further heating decomposes to form oxide.
570
572
573
___________ is a vital element present in our body.
____________ions are found primarily on the outside of cells which are located in blood plasma and in the interstitial fluid surrounding the cells.
What is the formula for sulphuryl chloride?
Cl.SO2Cl
