The boxes below show separation techniques and materials that could be separated.
Draw one straight line from each separation technique to a material that could be separated by that technique.
☐ | A | Salt | |
☐ | B | Air | |
☐ | C | Water | |
☐ | D | Ammonia |
Here are five statements about how paper chromatography can be used.
Place ticks in the boxes by three statements that are correct.
To distinguish between pure and impure substances | |
To identify substances by calculation and use of Rf values | |
To determine the amount of each substance in a mixture | |
To identify substances by comparison with known substances | |
To predict the solubility of a substance in water |
Which separation technique is this equipment used for?
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