Take a pipette and dip the nozzle into water in a vessel. suck out the air through the other end when the water rises to the mark on the pipette, cover its upper end and take the pipette out. then empty the water in the pipette into a beaker convert it into active voice



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A pipettes must be taken and the nozzle must be dipped into water in a vessel. The air must be sucked through the other end. When the water rises to the mark on the pipette, it's upper end must be covered and the pipette must be taken out.then water in the pipette must be emptied into a beaker.
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