The carbonate of a Group 2 element (beryllium to barium) in the Periodic Table, MCO3, decomposes on heating. Which of the following explains why the thermal stability of MCO3 increases down Group 2? [2005, Q25]
Group 2 STPM

Quiz
•
Chemistry
•
11th Grade
•
Hard

ker sin ong
Used 72+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The radius of M2+ ion increases
The lattice energy of MCO3 decreases
The charge density of M2+ ion decreases
The distance between M2+ and CO32- ions increases.
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Strontium is an element in Group 2 of the Periodic Table which is situated between calcium and barium. Which statement is true?
The strontium ion has a higher charge density than the calcium ion
Strontium sulphate is less soluble in water than calcium sulphate.
Strontium carbonate is more difficult to decompose than barium carbonate when heated
Strontium nitrate is more difficult to decompose than barium nitrate when heated
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
When aqueous solutions of barium nitrate and sodium sulphate are mixed, a white precipitate of barium sulphate is formed. Which statement explains why barium sulphate is precipitated from the reaction mixture? [2013 U2, Q10]
Its ions are large
It is an ionic compound with covalent character
Its enthalpy of hydration is lower than its lattice energy
It has a high solubility product
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which element has a value of electronegativity closer to aluminium? [2013 U2, Q11]
Beryllium
Magnesium
Strontium
Barium
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which reaction shows the strong heating of magnesium nitrate?
Mg(NO3)2 --> Mg(NO2)2 + O2
Mg(NO3)2 -->MgO2 + 2NO2
Mg(NO3)2 --> MgO + N2O + 2O2
2Mg(NO3)2 --> 2MgO + 4NO2 + O2
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Magnesium is a Group 2 element. When magnesium carbonate is heated, magnesium oxide is formed and carbon dioxide is liberated.
MgCO3 --> MgO + CO2
Which of the following is true when going down the group?
Lattice energy of carbonates decreases
Lattice energy of oxides decreases
Thermal stabilities of oxide decreases
Lattice energy of carbonates decreases
Lattice energy of oxides decreases
Thermal stabilities of oxide increases
Lattice energy of carbonates increases
Lattice energy of oxides increases
Thermal stabilities of oxide decreases
Lattice energy of carbonates decreases
Lattice energy of oxides increases
Thermal stabilities of oxide decreases
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A solution of aluminium nitrate will turn blue litmus paper to red because
the Al3+ ion is hydrolysed
the Al3+ ion has a high charge
all aluminium compounds are acidic
aluminium nitrate is an ionic compound
Create a free account and access millions of resources
Similar Resources on Quizizz
12 questions
CHEM Test 8 (10th) 21-22

Quiz
•
1st - 12th Grade
10 questions
IUPAC Nomenclature Rules Practice

Quiz
•
10th - 11th Grade
15 questions
Ionic Bonding and Covalent Bonding and Naming

Quiz
•
9th - 11th Grade
15 questions
check your chemistry vocalbulary

Quiz
•
9th - 12th Grade
10 questions
Ionic Compound Nomenclature

Quiz
•
11th - 12th Grade
5 questions
STPM Inorganic Group 2 elements

Quiz
•
1st - 12th Grade
15 questions
Metallic Bonding

Quiz
•
11th Grade
15 questions
Unit 6 Chemistry Test

Quiz
•
10th - 11th Grade
Popular Resources on Quizizz
25 questions
Equations of Circles

Quiz
•
10th - 11th Grade
30 questions
Week 5 Memory Builder 1 (Multiplication and Division Facts)

Quiz
•
9th Grade
33 questions
Unit 3 Summative - Summer School: Immune System

Quiz
•
10th Grade
10 questions
Writing and Identifying Ratios Practice

Quiz
•
5th - 6th Grade
36 questions
Prime and Composite Numbers

Quiz
•
5th Grade
14 questions
Exterior and Interior angles of Polygons

Quiz
•
8th Grade
37 questions
Camp Re-cap Week 1 (no regression)

Quiz
•
9th - 12th Grade
46 questions
Biology Semester 1 Review

Quiz
•
10th Grade