Is the solubility of oxygen higher in cold or hot water? explain.

COLD WATER

Explanation:

The solubility of a gas increases with decrease in the temperature.

Also the solubility of a gas increases with increasing pressure.

A gas can be compressed by increasing the pressure and decreasing the temperature.FOR example the gas in domestic LPG cylinders are in compressed form inside the cylinder.A gas takes the form of a liquid after compressing. Whenever it comes back to normal temperature and pressure it takes back to its gaseous form back.

The gaseous oxygen is water soluble and does not react with it

                    O2 + 2H2O + 4 e= 4 OH-

 

Compound with sulfer  is bright red 

You would be correct, boiling water does disinfect contamination.    the property of disinfecting means to kill  germs, bacteria and other pathogens or contamination  that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate.  the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.