Comment on each of the following observations:Lithium is the onl

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 Multiple Choice QuestionsLong Answer Type

101.

Lithium is the strongest reducing agent in aqueous solution. Explain.

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 Multiple Choice QuestionsShort Answer Type

102.

Why do alkali metals form ionic compounds?

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103.

why is melting point of lithium higher than sodium ?

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104.

Why the melting point of sodium is lesser than that of lithium?

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105.

Why ionic conductance of alkali metal ions in aqueous solution are in the order:
Li+ < Mg + < K+ < Rb+ < Cs+ Explain ?

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106.

Why are lithium salts commonly hydrated and those of the other alkali metal ions usually anhydrous?

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107.

Comment on each of the following observations:
 The mobilities of the alkali metal ions in aqueous solution are Li+ < Na+ < K+ < Rb< Cs+

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108.

Comment on each of the following observations:
Lithium is the only alkali metal which forms nitride directly.


Due to the diagonal relationship of Li and Mg (both have similar ionic sizes), lithium like magnesium forms a nitride on heating with nitrogen while other alkali metals do not.

Lithium is the only alkali metal which forms a nitride directly Li+ and N3- ions are very small, so they form stable Li3N.

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 Multiple Choice QuestionsLong Answer Type

109.

Lithium forms normal oxide, sodium forms peroxides while K, Rb and Cs form superoxides. Explain. 

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 Multiple Choice QuestionsShort Answer Type

110.

'Strenth of the bases increases from LiOH to CsOH'. Comment

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