First slide

Chemical Properties

Question

Which one of the following statements is incorrect ?

Easy

A

Lithium chloride is deliquescent
B

Sodium carbonate is used to remove hardness of water
C

Caesium fluoride has the highest negative $∆_{f} H^{0}$ value (standard enthalpy of formation) among the alkali metal fluorides
D

Potassium hydroxide is used in the manufacture of soft soaps

Solution

All alkali metal fluorides have negative $∆_{f} H^{0}$ values.
Lithium fluoride has the highest negative $∆_{f} H^{0}$ value (standard enthalpy of formation) among the alkali metal fluorides.

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