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Acid-Base Equilibrium
Atomic Structure And Related Patterns In The Periodic Table
Bonding And Structure, And Intermolecular Forces
Chemical Equilibrium
D-Block Elements (Transition Elements)
DESCRIPTIVE INORGANIC CHEMISTRY: Group IV (14)
DESCRIPTIVE INORGANIC CHEMISTRY: Halogens (GROUP VII or 17)
DESCRIPTIVE INORGANIC CHEMISTRY: Modern Periodic Table, Periodicity And S-Block Elements
Functional Group Chemistry And Reaction Mechanism
ORGANIC CHEMISTRY: Fundamentals
Raoult’s Law And Phase Equilibria
Reaction Kinetics
Redox Equilibrium
The Mole Concept

A pair of strong alkali is:

LiOH and Sr(OH)₂.

NaOH and Ca(OH)₂.

NaOH and KOH.

Ca(OH)₂ and Mg(OH)₂.

Amphoteric hydroxides react with both alkalies and acids. Which of the following Group 2 metal hydroxides is soluble in sodium hydroxide?

Ba(OH)₂.

Ca(OH)₂.

Mg(OH)₂.

Be(OH)₂.

Elements of groups I and II can easily be identified by:

Flame test.

Colour.

Reacting them with a base.

Heating.

Elements of group I arranged in order of increasing RAM are:

Sodium, Na; Lithium, Li; Potassium, K; Rubidium, Rb; Caesium, Cs.

Lithium, Li; Sodium, Na; Potassium, K; Rubidium, Rb; Caesium, Cs.

Lithium, Li; Potassium, K; Sodium, Na; Rubidium, Rb; Caesium, Cs.

Lithium, Li; Sodium, Na; Potassium, K; Caesium, Cs; Rubidium, Rb.

The order of decreasing ionisation enthalpy in alkali metals is.

Rb < Na < K < Li.

Na > Li > K > Rb.

Li > Na > K > Rb.

K < Li < Na < Rb.