Which of the following are correct for an ideal solution?

$a) \Delta V_{mix}=0$

$b) V_{solvent}+V_{solute}=V_{solution}$

$c) \Delta H_{mix}=0$

$d) H_{2}O+C{O}_2\to H_{2}C{O}_3$ is an example of ideal solution

The solutions which obey result’s law over the entire range of concentration are in own as ideal solutions.  The enthalpy of solution is zero. If the enthalpy of the solution gets closer to zero it is more likely to show an ideal behavior. ${\Delta }_{mix}H=0$

Thus, the volume of mixing is Also zero.

${\Delta }_{mix}H=0$

Thus, option (a), (b) and (c) are correct.