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WorksheetsAlkali and Alkaline earth metals. Reactions
Total questions: 10
Worksheet time: 5mins
Alkali metals react with water vigorously to form hydroxides and dihydrogen. Which of the following alkali metals reacts with water least vigorously?
Li
Na
K
Cs
The reducing power of a metal depends on various factors. Suggest the factor which makes Li, the strongest reducing agent in aqueous solution.
Sublimation enthalpy
Ionisation enthalpy
Hydration enthalpy
Electron-gain enthalpy
Metallic elements are described by their standard electrode potential, fusion enthalpy, atomic size, etc. The alkali metals are characterised by which of the following properties?
High boiling point
High negative standard electrode potential
High density
Large atomic size
Which of the following oxides, the most basic is:
MgO.
Na2O.
P2O3.
BeO.
When rubidium is reacted with oxygen, the compound formed is
RbO
Rb2O
Rb2O2
RbO2.
Which one of the following characterstics of lithium does not resemble with other alkali metals
It can form nitride when heated in air
It reacts with water to form hydroxide and hydrogen
It is soluble in liquid ammonia
Its’s nitrate is thermal unstable
One mole of magnesium nitride on the reaction with an excess of water gives
Two moles of ammonia
One mole of nitric acid
One mole of ammonia
Two moles of nitric acid
The species that does not contain peroxide ions is
PbO2
H2O2
SrO2
BaO2
A B C D
4 1 2 3
A B C D
2 3 1 4
A B C D
1 2 3 4
A B C D
1 4 2 2
Which monoxide of alkali metals is slowly hydrolysed
Li
Na
K
Cs
