CHEMISTRY

A MIXTURE CONTAINING TWO SALTS OF DIFFERENT SOLUBILITY CAN BE SEPARATED BY

  • A. chromatography
  • B. crystallization ✓
  • C. distillation
  • D. evaporation

 

Crystallization is the most suitable method for separating a mixture containing two salts of different solubility. This technique takes advantage of the varying solubilities of the salts in a solvent. When a solution containing the two salts is allowed to cool or evaporate under controlled conditions, one of the salts will begin to crystallize out of the solution before the other due to its lower solubility. This process enables the separation of the salts based on their differing solubilities and crystal formation.

In this scenario, as one salt crystallizes out first, it can be physically separated from the remaining solution, allowing for the isolation and purification of each salt individually. Crystallization is a widely used method in chemistry for separating mixtures based on differences in solubility and is particularly effective when dealing with compounds that form distinct crystals.

Therefore, when faced with a mixture containing two salts of different solubility, crystallization would be the most appropriate technique for their separation.

In other words, Crystallization is a separation technique that exploits the differences in solubility of substances in a solvent. When a mixture containing two salts of different solubility is dissolved in a suitable solvent, one salt may be more soluble than the other. By carefully controlling the conditions such as temperature and concentration, it is possible to selectively precipitate one salt out of the solution while keeping the other salt dissolved. This process allows for the separation of the two salts based on their solubility characteristics.

Crystallization is a widely used technique in chemistry for purifying substances and separating mixtures based on their solubility properties. It is particularly effective when dealing with solid compounds that have different solubilities in a given solvent. By manipulating the conditions of crystallization, such as cooling rate and seeding, it is possible to obtain pure crystals of one salt while leaving behind the impurities or the other salt in solution.

In summary, crystallization is an effective method for separating a mixture containing two salts of different solubility by exploiting their solubility differences and selectively precipitating one salt from the solution.

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