Question

Which one of the following is insoluble in water?
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Answer 1

Calcium carbonate,Aluminium carbonate,Magnesium fluoride ect

Explanation:

• Calcium carbonate has  very poor solubility in pure water (15 mg/l at 25 °C), but increases in solubility in rainwater saturated with carbon dioxide due to the formation of more soluble calcium bicarbonate. Calcium carbonate is unique in that its solubility increases with decreasing water temperature.

• Aluminium carbonate (Al2(CO3)3), is a carbonate of aluminium with Density 1.5 g/cm3 ,Melting point is 58 °C ,Boiling point is decomposes ,Solubility in water are reacts.

• Magnesium fluoride is poorly soluble in water (0.0076 g/100 ml) at 18 °C . It can be agglomerated with water, compressed into green granules, dehydrated and sintered at high temperatures to produce porous granules that can be used to selectively entrap technetium.

Answer 2

Answer:

Salt Sugar Wood Vinegar

Explanation:

Salt Sugar Wood vinegar