Rate of filtration can be increased by applying gentle suction

Explanation

The correct option, "All of the above," is accurate because applying gentle suction can enhance the filtration rate across various mediums used in laboratory filtration processes:Gooch crucible: Applying gentle suction helps draw the liquid through the porous material (such as the porous bottom of the Gooch crucible), expediting the filtration process by increasing the flow rate.Sintered crucible: Sintered crucibles have a porous structure that allows for filtration without needing additional filter paper. Applying gentle suction aids in pulling the liquid through these porous structures, facilitating faster filtration.Filter paper: When using filter paper in a funnel, applying gentle suction via a vacuum flask or a pump accelerates the passage of liquid through the paper due to the pressure difference created, hence boosting the filtration rate.