Sublimation and Its Applications

The video tutorial demonstrates the process of separating camphor from salt using sublimation. Initially, a mixture of salt and camphor is heated, causing the camphor to sublimate into vapor. This vapor condenses back into solid form on a cooled glass surface, allowing for separation from the salt. The tutorial also explains the practical application of sublimation in everyday items like napthalene balls, which protect clothes from insects by releasing a toxic gas barrier.

What is the main challenge in separating camphor from salt in the initial setup?

• Camphor and salt are both liquids.

• Camphor and salt are both magnetic.

• Camphor and salt are both white solids.

• Camphor and salt are both gases.

What is the process called when camphor changes directly from solid to gas?

• Sublimation

• Melting

• Evaporation

• Condensation

During the experiment, what is observed inside the inverted glass?

• Liquid camphor

• Colored vapors

• White smoke

• Salt crystals

What happens to the camphor vapors when the glass is allowed to cool?

• They deposit as a solid on the glass walls.

• They remain as vapors.

• They disappear completely.

• They turn into liquid.

Why is some camphor still present on the plate after the experiment?

• Not all camphor sublimated.

• The salt absorbed the camphor.

• The glass was too hot.

• The camphor melted.

What is a common use of naphthalene balls?

• To flavor food

• To clean glass surfaces

• To repel insects from clothes

• To absorb moisture

How do naphthalene balls protect clothes?

• By changing color

• By releasing a toxic gas to insects

• By melting into a liquid

• By absorbing moisture

What is the significance of sublimation in everyday life as discussed in the video?

• It helps in cooking food.

• It is used in refrigeration.

• It provides a method to separate certain solids.

• It is used to create perfumes.

What does the video suggest about the presence of science in daily life?

• Science is only for experts.

• Science is not useful in daily life.

• Science is present in everyday objects and processes.

• Science is only in laboratories.

What is the broader implication of sublimation as mentioned in the conclusion?

• It can solve everyday problems in innovative ways.

• It is only useful in chemistry labs.

• It is only a theoretical concept.

• It is not applicable to real-world scenarios.