Lithium is the lighest alkali metal but ...

Lithium is the lighest alkali metal but in aqueous solution , `Li^(+)` has the lowest mobility among alkali metals . Why so ?

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**Step-by-Step Solution:** 1. **Identify Lithium's Position in the Periodic Table**: Lithium (Li) is the lightest alkali metal and belongs to Group 1 of the periodic table, specifically in Period 2. 2. **Understand the Concept of Mobility in Aqueous Solution**: Mobility refers to the ability of ions to move through a solution. In aqueous solutions, ions are surrounded by water molecules, which can affect their movement. 3. **Analyze Lithium's Size**: Lithium is the smallest alkali metal in terms of atomic radius. Its small size contributes to its unique behavior in solution. ...

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In an aqueous solution the correct order of mobility of alkali metal ions is ?

`Rb^(o+) gt K^(o+) gt Na^(o+) gt Li^(o+)`

`Li^(o+) gt Na^(o+) gt K^(o+) gt Rb^(o+)`

`Na^(o+) gt K^(o+) gt Rb^(o+) gt Li^(o+)`

` K^(o+) gt Na^(o+) gt Rb^(o+) gt Li^(o+)`

Lithium is the _____among all alkali metals.

most reactive and te strongest agent

least reactive but the weakest reducing agent

most reactive but the weakest reducing agnet

least reactive and the weakest reducing agent

The highest melting point among alkali metal of-

`Li`

`Na`

`K`

`Rb`