dissolution in water, evapouration and filtration
filtration, evaporation and dissolution in water
dissolution in water, filtration and evaporation
evaporation, dissolution in water and filtration
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Unrelated but just want to say thank you to myschool and all their hardworking teachers and members who have helped me this past week to prepare properly for my jamb. Thank you.
We are given a mixture of sugar and sulfur.
So first, what does that actually mean in plain language?
It simply means you have two solid substances mixed together. Sugar is soluble in water. Sulfur is insoluble in water. That one fact is the whole key to the question.
If you remember nothing else, remember this: sugar dissolves in water, sulfur does not.
Now let’s think like a chemist, not like someone memorizing steps.
If you pour water into this mixture, something interesting happens. The sugar disappears into the water because it dissolves. It becomes part of the liquid. The sulfur refuses to dissolve, so it just sits there unchanged.
So after adding water, you now have two things: a sulfur solid sitting at the bottom, and sugar dissolved in water.
At this point, the mixture is no longer a simple solid-solid mixture. It has become a solid-liquid mixture. That is important because it decides what method comes next.
Now, how do you separate a solid that does not dissolve from a liquid?
You use filtration.
Filtration will trap the sulfur on the filter paper, while the sugar solution passes through as filtrate.
So after filtration, you now have sulfur separated out, and you are left with sugar dissolved in water.
Now the final step is to get the sugar back.
If sugar is dissolved in water, the only way to recover it is to remove the water. That is done by evaporation. You heat the solution gently, the water leaves as vapor, and sugar crystals remain behind.
So the full logical chain is: dissolve in water, filter, then evaporate.
Now let’s go through the options slowly and see why only one survives.
Option A says dissolution in water, evaporation and filtration. That order is wrong because evaporation comes too early. If you evaporate before filtering, you are mixing everything and you will waste the separation step. You cannot recover clean sulfur properly that way.
Option B says filtration, evaporation and dissolution in water. This is completely disordered. Filtration before dissolving makes no sense because nothing has been separated yet. You are trying to filter a dry solid mixture that is not ready for separation.
Option C says dissolution in water, filtration and evaporation. This is exactly what we reasoned step by step. First you dissolve sugar so it separates from sulfur, then you filter to remove sulfur, then you evaporate to recover sugar. Everything flows logically.
Option D says evaporation, dissolution in water and filtration. This is also wrong because evaporation at the beginning makes no sense. You cannot evaporate a dry mixture and expect separation. You are destroying the process before it starts.
So the correct answer is C.
