EASY
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Name the following — Radioactive alkali metal.

Important Questions on s-Block Elements

MEDIUM
Chemistry>Inorganic Chemistry>s-Block Elements>General Introduction of Group 1 Elements
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
Chemistry>Inorganic Chemistry>s-Block Elements>General Introduction of Group 1 Elements
On combustion of Li, Na and K in excess of air, the major oxides formed, respectively, are:
HARD
Chemistry>Inorganic Chemistry>s-Block Elements>General Introduction of Group 1 Elements
Choose the correct order of density of the alkali metals
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Chemistry>Inorganic Chemistry>s-Block Elements>General Introduction of Group 1 Elements
The main oxides formed on combustion of Li, Na and K in excess of air are respectively:
MEDIUM
Chemistry>Inorganic Chemistry>s-Block Elements>General Introduction of Group 1 Elements
Which one of the following oxide dissolves in both hydrochloric acid and sodium hydroxide?
MEDIUM
Chemistry>Inorganic Chemistry>s-Block Elements>General Introduction of Group 1 Elements
Identify the weakest oxidizing agent among the following
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Chemistry>Inorganic Chemistry>s-Block Elements>General Introduction of Group 1 Elements
The oxide of potassium that does not exist is
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Chemistry>Inorganic Chemistry>s-Block Elements>General Introduction of Group 1 Elements
The order of stability for the super oxides is
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Chemistry>Inorganic Chemistry>s-Block Elements>General Introduction of Group 1 Elements
For alkali metals, which of the following trends is incorrect?
MEDIUM
Chemistry>Inorganic Chemistry>s-Block Elements>General Introduction of Group 1 Elements
Sodium metal on dissolution in liquid ammonia gives a deep blue solution due to the formation of:
MEDIUM
Chemistry>Inorganic Chemistry>s-Block Elements>General Introduction of Group 1 Elements
The correct order of hydration enthalpies of alkali metal ions is:
EASY
Chemistry>Inorganic Chemistry>s-Block Elements>General Introduction of Group 1 Elements
The correct order of conductivity of ions in water is:
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Chemistry>Inorganic Chemistry>s-Block Elements>General Introduction of Group 1 Elements
The metal mainly used in devising photoelectric cells is :
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Chemistry>Inorganic Chemistry>s-Block Elements>General Introduction of Group 1 Elements
The metal that forms nitride by reacting directly with N2 of air is:
HARD
Chemistry>Inorganic Chemistry>s-Block Elements>General Introduction of Group 1 Elements
Which of the following liberates O2 upon hydrolysis?
MEDIUM
Chemistry>Inorganic Chemistry>s-Block Elements>General Introduction of Group 1 Elements
Sodium dissolves in liquid NH3 to give a deep blue solution. This is due to;
MEDIUM
Chemistry>Inorganic Chemistry>s-Block Elements>General Introduction of Group 1 Elements
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
Chemistry>Inorganic Chemistry>s-Block Elements>General Introduction of Group 1 Elements
The hottest region of Bunsen flame shown in the figure below is:


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Chemistry>Inorganic Chemistry>s-Block Elements>General Introduction of Group 1 Elements
Which of the following alkali metal ion in aqueous solution is the best conductor of electricity?
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Chemistry>Inorganic Chemistry>s-Block Elements>General Introduction of Group 1 Elements
The correct order of mobility of alkali metal ions in aqueous solution is-