Question

give reason liquid generally have lower density as compared to solid but you must have observed that ice floats on water find out why

Answer 1

This is because when ice freezes carbon dioxide entered into the gap between the particle of water and thus making ice more denser and as we know more denser means it will flot on water

Answer 2

because of rational density
Ice have less density water(less than 1)
that is 0.81