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Which has minimum solubility option ,1)Br2S3 ,2) Ag2S ,3) CoS, 4) PbS
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Which has minimum solubility option ,1)Br2S3 ,2) Ag2S ,3) CoS, 4) PbS
Minimum Solubility Comparison
  • Br2S3: This compound, bromine trisulfide, has low solubility in water. It is insoluble in cold water and only slightly soluble in hot water.
  • Ag2S: Silver sulfide is sparingly soluble in water. It has a solubility product constant (Ksp) of 6.0 x 10^-50, indicating its very low solubility.
  • CoS: Cobalt sulfide has higher solubility compared to the other compounds listed. It is slightly soluble in water due to the formation of hydroxide complexes.
  • PbS: Lead sulfide has the minimum solubility among the options provided. It is highly insoluble in water, with a Ksp value of 8.5 x 10^-29, indicating its extremely low solubility.


In conclusion, lead sulfide (PbS) has the minimum solubility among the given options, making it highly insoluble in water. The Ksp value of PbS further supports its low solubility compared to the other compounds.
Community Answer
Which has minimum solubility option ,1)Br2S3 ,2) Ag2S ,3) CoS, 4) PbS
Br2S3
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Which has minimum solubility option ,1)Br2S3 ,2) Ag2S ,3) CoS, 4) PbS
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