Question

Why a ballon filled with hydrogen gas rise to the ceiling

Answer 1

Answer:

bcoz hydrogen gas is very light and when it is inside a ballon it carries it with it up in the air/ceiling

Answer 2

Answer:

Hydrogen filled balloons generally rises up in the air. This is because hydrogen is less dense and its weight is also less than the air. The one filled with carbon dioxide generally sinks down as it is denser than the air and due to its heavy weight, it cannot rise up to the ceiling.