Question

F. Give reasons for the following.

1. The SI unit of density is
kg/m³.

2. Volume of a crystal of potash alum cannot be determined by immersing it into water taken in a graduated beaker.

3. Speed of a car is more than the speed of a cyclist.​

Answer 1

1. The SI unit of mass is kg or kilogram. the SI unit of volume is metre cube or m³ . hence, density = Kg / m³ .

2. the volume of a crystal of potash alum cannot be determined by merging it into water taken in a graduated beaker because there is dissociation of potash alum. ... Potash alum is nothing but potassium ammonium hydroxide.

3. Because mass of car is higher than that of cyclist and car is working on engine it has more power.

Hope that this will help you...