EASY
AS and A Level
IMPORTANT
Earn 100

Write balanced chemical equation including state symbols, for the thermal decomposition of barium nitrate.

Important Questions on Group 2

MEDIUM
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 11 - Group 2>EXAM-STYLE QUESTIONS>Q 1

Which row of the table is correct, A, B, C or D?

Row Trend in reactivity
of elements going
down Group 2

Trend in solubility of
sulfates going down
Group 2

Trend in solubility of
hydroxides going down Group 2
A increases

decreases

 increases
B decreases decreases increases
C increases increases decreases
D decreases increases decreases
EASY
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 11 - Group 2>EXAM-STYLE QUESTIONS>Q 2

Beryllium is a Group 2 element. Write the electronic configuration of beryllium.

EASY
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 11 - Group 2>EXAM-STYLE QUESTIONS>Q 2

Beryllium and radium are both in Group 2. Give the equations for the reactions of beryllium and radium with oxygen.

EASY
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 11 - Group 2>EXAM-STYLE QUESTIONS>Q 2

Beryllium is a Group 2 element. Using dot-and-cross diagrams, and showing the outer electrons only, draw the electronic configurations of beryllium and oxygen before and after bonding.

MEDIUM
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 11 - Group 2>EXAM-STYLE QUESTIONS>Q 2
Beryllium and radium are both in Group 2. Draw a diagram to show the metallic bonding in both beryllium and radium. Using your diagram, explain why beryllium has a higher melting point than radium.
EASY
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 11 - Group 2>EXAM-STYLE QUESTIONS>Q 3
Limewater is a solution of calcium hydroxide. Give the formula of calcium hydroxide.
EASY
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 11 - Group 2>EXAM-STYLE QUESTIONS>Q 3

Limewater is a solution of calcium hydroxide. Explain why calcium hydroxide is used in agriculture.

EASY
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 11 - Group 2>EXAM-STYLE QUESTIONS>Q 3

Exactly 0.1 moles each of calcium hydroxide and barium hydroxide are added to separate beakers containing 100 cm3 of water and stirred to form saturated solutions. Explain which solution has the higher pH value.