Chemistry College

Mention the most suitable separation technique that may be used to separate the components and explain briefly how separation is achieved under the separation technique. A mixture of sand, table salt and iron fillings​

Answers

Answer 1

The most suitable separation technique for this mixture is a combination of magnetic separation and filtration.

How is the mixture separated?

First, a magnet can be used to separate the iron fillings from the sand and salt mixture. This is because iron is magnetic and will be attracted to the magnet, leaving the sand and salt behind.

Next, the sand and salt mixture can be dissolved in water. Since salt is soluble in water but sand is not, the salt will dissolve while the sand remains behind. The mixture can then be filtered to separate the sand from the saltwater solution.

Finally, the saltwater solution can be heated to evaporate the water and obtain the salt as a solid residue.

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