(N/A) $Solution$ (true solution) is a homogeneous mixture. It does not show the $Tyndall$ effect. The solute particles are very small and cannot be filtered using filter paper. It is transparent. Examples: $Sea$ $water$,$alloys$,$lemon$ $juice$ in $water$.
$A$ $Sol$ (colloidal solution) is a heterogeneous mixture. It shows the $Tyndall$ effect. The particles cannot be separated by ordinary filter paper. It may be transparent or translucent. Examples: $Milk$ of $magnesia$,$cough$ $syrup$,$fog$,$smoke$.
$A$ $Suspension$ is a heterogeneous mixture. It shows the $Tyndall$ effect. The particles are large enough to be separated easily by filter paper. It is generally opaque. Examples: $Sand$ in $water$,$chalk$ in $water$.