The following steps are done to prepare solid magnesium sulfate.
1 filtration
2 measurement of $20c{m^3}$ of dilute sulfuric acid using a measuring cylinder
3 evaporation
4 addition of an excess of solid magnesium carbonate to dilute sulfuric acid
What is the correct order for these steps?
1 )
2 → 4 → 3 → 1
2 → 4 → 1 → 3
3 )
4 → 2 → 1 → 3
4 )
4 → 2 → 3 → 1
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