Question

THINK ZONE
1. Stone is hard and firm. It doesnot break when it is dropped. Glass is also hard and firm but breaks into pieces when it is dropped. Why?
2. Which of the following vapourises fast?
Water, spirit or kerosene.​

Answer 1

Answer:

It is the force exerted within the glass when it hits the floor that breaks it. If the glass falls on a hard floor like concrete then the force is very big. ... This massively reduces the forces within the glass and gives it a fighting chance of staying in one piece.

Explanation:

2)Water and spirit both have hydrogen bond

So their molecules required more energy for dissociation of these hydrogen bond.

Water evaporate first at 100 degree Celsius

While spirit evopate at 130 degree Celsius.