List of top Chemistry Questions on Gas laws asked in WBJEE

360 cm$^3$ of a hydrocarbon diffuses in 30 minutes, while under the same conditions 360 cm$^3$ of SO$_2$ gas diffuses in one hour. The molecular formula of the hydrocarbon is

The compressibility factor for a van der Waals gas at high pressure is

Avogadro's law is valid for

Two soap bubbles of radii $x$ and $y$ coalesce to constitute a bubble of radius $z$. Then $z$ is equal to