Which of the following substances will lose its whose solubility with increase in temperature?

The substances whose solubility decreases with increase in temperature :

The substance whose solubility decreases with increase in temperature

In which of the following substances , surface tension increases with increase in temperature ?

Solubility of which among the following substances in water increases slightly with rise in temperature?

Solubility of which among the following substances in water increases slightly with rise in temperature ?