EASY
Earn 100

Name the alkali metal in the second period. (Beryllium/ Lithium)

83.33% studentsanswered this correctly

Important Questions on The s-Block Elements

EASY
The metal that forms nitride by reacting directly with N2 of air is:
EASY
The correct order of conductivity of ions in water is:
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:
MEDIUM
The correct order of hydration enthalpies of alkali metal ions is:
EASY
The hottest region of Bunsen flame shown in the figure below is:


Question Image
EASY
The main oxides formed on combustion of Li, Na and K in excess of air are respectively:
HARD
Choose the correct order of density of the alkali metals
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
On combustion of Li, Na and K in excess of air, the major oxides formed, respectively, are:
EASY
The correct order of mobility of alkali metal ions in aqueous solution is-
EASY
The metal mainly used in devising photoelectric cells is :
MEDIUM

Give a reason for the following.

Alkali metals are good reducing agents.

HARD
Which of the following liberates O2 upon hydrolysis?
MEDIUM
Identify the weakest oxidizing agent among the following
EASY
The order of stability for the super oxides is
MEDIUM
Among the following, number of metal/s which can be used as electrodes in the photoelectric cell is ___ . (Integer answer)
(A) Li
(B) Na
(C) Rb
(D) Cs
MEDIUM
Sodium dissolves in liquid NH3 to give a deep blue solution. This is due to;
MEDIUM
Sodium metal on dissolution in liquid ammonia gives a deep blue solution due to the formation of:
MEDIUM
Which one of the following oxide dissolves in both hydrochloric acid and sodium hydroxide?