why lithium is not stored in hydrocarbons and organic solvents but other alkali metals does?

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Solution

Various reasons for this activity is

On exposure to moist air all alkali metal tarnish rapidly so they are kept in kerosene. Exception to this is Lithium.

Lithium due to its light density it floats on the surface. so it is wrapped in paraffin wax.

Due to high polarising power, covalent character of lithium and its compounds increases, which is responsible for their solubility in organic solvents

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