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Hydrogen is Lighter than Air-An Activity we need to prepare to hydrogen gas in the
laboratory. Zinc granules are taken in the woulf’s bottle
and the apparatus is arranged shown here. Dilute Sulphuric acid dropped into woulf’s
bottle through the thistle funnel. The hydrogen gas found need to pass through
the caustic soda solution it becomes free form acid and the gas is passed through the
soap solution taken the trough what you observe. That you will find the bubble hydrogen formed
this shows the gas is present in bubbles is lighter than air.