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Paheli faced a problem while recovering salt mixed with sand. She has mixed a packet of salt in a small amount of sand. She then tried the decantation and filtration method to recover the salt. She found, however, that she could recover only a small part of the salt that she had taken. What could have gone wrong?
Paheli recovered only a small part of salt because the amount of salt she mixed with the sand and water was to form a . The in the solution.
During decantation, was removed. The remaining was retained with the sedimented .
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