EASY
Earn 100

The decreased order of the ionic conductance in the alkali metal is:

Li+<Mg+<K+<Rb+<Cs+.

 

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Important Questions on The s-Block Elements

MEDIUM
When sodium Na metal is dissolved in liquid ammonia NH3, it imparts a blue colour to the solution. This blue coloration is due to:
EASY
The correct order of mobility of alkali metal ions in aqueous solution is-
EASY
The order of stability for the super oxides is
MEDIUM
Sodium dissolves in liquid NH3 to give a deep blue solution. This is due to;
MEDIUM
Identify the weakest oxidizing agent among the following
HARD
Choose the correct order of density of the alkali metals
EASY
On combustion of Li, Na and K in excess of air, the major oxides formed, respectively, are:
EASY
The main oxides formed on combustion of Li, Na and K in excess of air are respectively:
MEDIUM
The correct order of hydration enthalpies of alkali metal ions is:
MEDIUM
Sodium metal on dissolution in liquid ammonia gives a deep blue solution due to the formation of:
MEDIUM
A metal on combustion in excess air forms X . X upon hydrolysis with water yields H2O2 and O2 along with another product. The metal is:
EASY
The metal that forms nitride by reacting directly with N2 of air is:
EASY
Regarding metals of s-block select the correct statements:
EASY
Lithium compounds impart _____ colour to the flame.
EASY
Select the correct statements from the following.
MEDIUM
Sublimation enthalpy _____ (increases/decreases) down the group is alkali metals.
EASY
The general electronic configuration of s-block elements is _____.
HARD
Select the correct statements from the following.