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Most soluble in water is:

  • A.Camphor
  • B.Sulphur
  • C.Common salt
  • D.Sugar

Answer: D

Sugar is the most soluble of these in water - about 200 g dissolve in 100 ml at room temperature, far more than common salt's 36 g.

Sucrose is so soluble because its many hydroxyl groups hydrogen-bond to water. Camphor and sulphur are non-polar and essentially insoluble.

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