Chromic acid (the mixture of H2SO4 and K2Cr2O7) is used to clean the glassware. If the glassware is clean then no water drops are found to the glass wall of the apparatus. After washing, if it is kept on platfrom, it is easily dried. From these observations, we can say that the glassware is clean.
Specific uses of pipette: Pipette is used to measure the particular volume of liquid and to transform it from one container to other. Specific uses of burette: Burette is used to measure the volume of a liquid very precisely and accurately. A primary or secondary solution is taken in burette during titration.
Specific uses of the conical flask: Volumetric analysis reactions are done in the conical flask. During the titration, a solution whether its concentration is known or unknown is taken from burette and pipette into the conical flask titration can be completed.
Measuring cylinder cannot be used instead of pipette or burette because the measurement of pipette & burette are very precise and accurate than measuring cylinder Again pipette is more preferable because during the titration drop wise solution can be added to the conical flask by using burette but not measuring cylinder.