GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Magnet
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Sieve
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Evaporation
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Decantation
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Detailed explanation-1: -The magnetic separation is a process in which magnetically susceptible material is extracted from a mixture using magnetic force. This is best way to separate the mixture of sand and iron fillings as iron is attracted by magnet.
Detailed explanation-2: -Iron filings is a magnetic material while sand is a non magnetic material so they can be easily separated using a magnet.
Detailed explanation-3: -A bar magnet is used for the separation of iron filings from sand as unlike sand, iron has magnetic properties.
Detailed explanation-4: -*Use magnet to remove iron filings (magnetic attraction) *Add water to remaining sugar/sand to dissolve sugar (solubility of sugar). *Pour solution through filter to remove sand (solid). *Heat or allow water to evaporate to remove the water-sugar remains (solid).