Question

The evaporation of a liquid can be best carried in a

• A. Beaker
• B. China dish
• C. Test tube
• D. Flask

Answer 1

The correct option is B

China dish

The explanation for correct option:
(B) China dish

• Evaporation of the liquid can be best carried in a china dish due to large surface area available.
• When the surface are is more then evaporation is more.
• Evaporation occurs when a liquid turns into a gas. It can be easily visualized when rain puddles “disappear” on a hot day or when wet clothes dry in the sun.
• In these examples, the liquid water is not actually vanishing—it is evaporating into a gas, called water vapor.

The explanation for incorrect options:
(A) Beaker

• The surface area is not so more as compared to china dish.
• Evaporation rate will be less as compared to china dish due to less surface area.

(C) Test tube

• The surface area is very less as compared to china dish.
• Evaporation rate will be less as compared to china dish due to less surface area.

(D) Flask

• The surface area is not so more as compared to china dish.
• Evaporation rate will be less as compared to china dish due to less surface area.
  

Hence option B is correct.