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WorksheetsS - Block Elements (Alkali Metals)
Total questions: 10
Worksheet time: 3mins
CsOH is
Strongly acidic
Strongly basic
Weakly basic
Weakly acidic
Alkali metals give a _________________when dissolved in liquid ammonia.
Deep blue solution
Colourless
Red colour
None of these
The basic strength of which hydroxide is maximum
LiOH
NaOH
KOH
Ca(OH)2
Which of the following alkali metals has the least melting point?
Rb
Li
K
Cs
Which one of the alkali metals, forms only the normal oxide, K2O on heating in air?
Li
Cs
Rb
Na
As compared to K, Na has
higher ionization potential
lower melting point
lower electronegativity
larger atomic radius
The tendency to lose their valance electron easily by alkali metals makes them
strong reducing agent
weak reducing agent
strong oxidising agent
weak oxidising agent
What are the products formed when Li2CO3 undergoes decomposition?
Li2O2, CO
Li2O, CO2
Li2O, CO
Li2O2, CO2
Among the alkali metals, the metal with the highest ionization potential is
Cs
Na
Li
K
Which of the following is the least basic?
Li2O
K2O
Na2O
None of these
