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gle e] Upload ejVA Identity and Access M e?VA Knowledge Base OM OER-MAT122 Summer udall B Which is not true about the solubility of a substance? O The solubility of a solid in a liquid decreases as the temperature increases O lonic solids are soluble in polar solvents O Non polar liquids are miscible with non polar solvents O All of these are true O lonic solids are insoluble in non polar solvents Question 12 pt True or False: Sodium metal will react in just cold water to form a base and hydrogen gas O True O False

Explanation / Answer

Which is not true about the solubility of a substance?

Ans: The solubility of a solid in a liquid decreases as the temperature increases.

[Solubility increases with increase in temperature.

Like dissolves like. So ionic solids dissolve in polar solvents. Ionic solids like NaCl dissolve in water but will not be soluble in nonpolar solvents like chloroform or carbontertrachloride.]

12. Sodium metal will react in just cold water to form a base and hydrogen gas:

Ans: True

2 Na (s) + 2 H2O (l) -------> 2 NaOH (aq) + H2 (g)

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