Unveiling Colors Through Paper Chromatography

The video tutorial introduces chromatography, a technique for separating dissolved solids in a solution. It explores whether black ink contains only black color or other colors as well, using paper chromatography. The process involves placing a drop of ink on filter paper and observing how water carries the dyes up the paper, separating them based on solubility and speed. The experiment demonstrates the presence of different dyes in the ink, highlighting the effectiveness of paper chromatography in separating colors.

What is the primary purpose of chromatography?

• To create new dyes

• To separate dissolved solids

• To measure the density of liquids

• To mix different colors

What is the first step in preparing the filter paper for chromatography?

• Draw a line with a pen

• Draw a line with a pencil

• Cut the paper into small pieces

• Soak the paper in water

Where should the drop of ink be placed on the filter paper?

• At the top of the paper

• On the line drawn near the lower edge

• At the bottom of the paper

• In the center of the paper

What is the role of water in the chromatography experiment?

• To dry the ink faster

• To change the color of the ink

• To carry the dyes up the paper

• To dissolve the paper

What causes the different colors to appear on the paper during chromatography?

• The paper's texture

• The water's temperature

• The different solubility levels of dyes

• The amount of ink used

Why do different dyes travel at different speeds during chromatography?

• Due to their solubility levels

• Due to the water's pH level

• Because of their weight

• Because of the paper's thickness

What is the final outcome of a successful paper chromatography experiment?

• A completely wet paper

• A dry paper with no visible change

• A single color strip

• Multiple colored strips at different heights