14.Why are lithium compounds soluble in organic solvents?

Ans.Due to high polarizing power, there is increased covalent character of lithium
compounds which is responsible for their solubility in organic solvents

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13.Name the anomalous properties of lithium.

Ans. The anomalous behaviours of lithium is due to the following-

(i) Exceptionally small size of its atom and ion., Li+

(ii) High polarizing power (I, e; charge / radius radio)

12..Why is sodium hydrogen carbonate known as baking powder?

Ans.Sodium hydrogen carbonate is known as baking soda because it decomposes on heating

to generate bubbles of CO2 (leaving holes in cakes and bread)