Chromatography

Ink can be separated by a method of -----------------------------------------------

• distillation

• filtration

• chromatography

• sedimentation

On the chromatogram given -------------- is mixture.

• red
• orange
• green
• black

A pure substance shows ------------------ spot on chromat gram

• 0
• 1
• 2
• 3

Why is Chromatography useful?

• It can be used as medicine.
• It can be used for finding clues at a crime scene
• It can be used to make bombs.
• It can reduce the lack of food and water.

Mixtures can be separated using chromatography.

• True
• False

This chromatogram shows five commercial dyes (X, P, Q, R and S). The pigment in dye Q Is known to cause cancer. Which dye(s) is/are safe for use?

• P only
• S only
• P and S
• P and X

Tags

NGSS.MS-PS1-2

Chromatography separates a mixture of...

• Solutes

• Solvents

• Solutions

• Soooo I don´t know

What is the liquid part of the chromatography set up?

• Solute

• Solvent

• Solution

• Soluble

 If a substance is not attracted to the water what happens to the 'dot'?

• a) Dot moves to the top of the paper
• b) Dot does not move at all
• c) Dot moves to the left or right
• d) Dot moves down to the bottom of the paper

In paper chromatography, the MOST soluble solute .......

• does not move from the start point
• stays closest to the start point
• travels furthest away from the start point
• can be found in the middle of the chromatogram