Chromatography Experiment Concepts

The video tutorial, led by Ross from the Royal Society of Chemistry, introduces chromatography as a simple experiment that can be done at home. It details two methods using household items like kitchen roll, water, and colored pens. The first method involves drawing on kitchen roll and adding water drops to observe color separation. The second method uses a strip of kitchen roll placed in water to see ink separation. Both methods reveal the composition of colors in the ink. The video encourages viewers to try the experiment themselves and share their results.

What is the main topic of the video presented by Ross?

• Distillation

• Filtration

• Electrolysis

• Chromatography

Which item is NOT required for the first chromatography experiment?

• Scissors

• Pen

• Kitchen roll

• Salt

What is the purpose of placing the kitchen roll over the bowl in the first method?

• To keep the paper dry

• To make the paper wet

• To add color to the paper

• To cut the paper

How many drops of water are added to the picture in the first method?

• Two

• Four

• Six

• Eight

What colors were observed in the orange ink after the first method?

• Blue, green, and red

• Pink, orange, and yellow

• Purple, brown, and black

• Red, white, and blue

What is the first step in the second method of chromatography?

• Use a different pen

• Add water to the paper

• Cut a strip of kitchen roll

• Draw a picture

In the second method, where is the water added?

• Directly onto the paper

• Into the bowl

• On the table

• On the pen

What happens to the ink as the water travels up the kitchen roll strip in the second method?

• It changes color

• It gets carried with the water

• It stays at the bottom

• It disappears

Which color was observed at the top of the strip in the second method?

• Green

• Pink

• Yellow

• Orange

What does Ross encourage viewers to do at the end of the video?

• Write a report

• Read a book

• Watch another video

• Try the experiment themselves