Question

Arrange following in order of increasing density.
Air, Exhaust from chimneys, Honey, Water, Chalk and Iron
(A) Exhaust from chimneys, Air, Cotton, Water, Honey, Chalk and Iron
(B) Air, Water, Exhaust from chimneys, Honey, Iron, chalk, Cotton
(C) Water, Honey, Air, Iron, Chalk, Cotton, Exhaust from chimneys
(D) Honey, Chalk, Iron, Exhaust from chimneys, Air, Water, Cotton

Answer 1

Hint: The term "density" refers to the amount of mass per unit of volume. An object's average density is equal to its total mass divided by its total volume. An object made of a relatively dense material (such as iron) would have less volume than one made of a less dense substance of equal mass (such as water).

Complete answer:
The density of air is $ 1.225kg/{m^3} $ . That means in $ 1 $ cubic metres of air contains $ 1.225 $ kilograms of air.
Chimney exhaust is a mixture of gases, as well as certain heavier particles like ash. As a result, chimney exhaust has a higher density than air.
Cotton is a porous solid that traps a lot of air inside its pores. As a result, it has a larger volume than water. As a result, it has a lower density than water.
Honey is a liquid that contains some dense crystals, making it denser than water.
Chalk is a solid that, when compared to honey, is denser, but less so when compared to iron.
Among the given materials, iron is the densest.
The increasing order of density is air, exhaust from chimney, cotton, water, honey, chalk, iron.

Additional Information:
Air is a gaseous mixture that is the least dense of the given substances. The density of the exhaust from chimneys is $ 1.292kg/{m^3} $ or more. It is comparatively more than the density of air.

Note:
Let us know some more about the density. Density is also varied with temperature, pressure, and other factors also. Exhaust contains little metals in particle form so it increases the density of the exhaust.