Which of the graphs illustrates the variation of the pH of a given volume of strong acid solution (y-axis) with the volume of strong base titrated against its (x-axis)?

Which of the graphs illustrates the variation of the solubility of a salt in water (y-axis), with an increase in temperature (x-axis) if the dissolution process is exothermic?

The formation of ethene from dehydration of ethanol can be described as-------

Which of the following gasses is highly soluble in water at room temperature

A molecular of phosphorus is