16th of September 2015

what is the use of KOH in showing experiment of respiration of seed

Harsh K - ICSE - Class IX

Wednesday, September 16, 2015 at 18:27:PM


Hi Harsh,

When water level rises in the tube, it indicates that carbon dioxide is produced by germinating seeds.So, the role of KOH here is that it absorbs the carbon dioxide gas which creates a vacuum in conical flask and finally pulls the water in the bent tube which proves respiration in plants.

Wednesday, September 16, 2015 at 18:36:PM