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WorksheetsMelting and Boiling point
Total questions: 10
Worksheet time: 8mins
What is the factor affecting the melting and boiling point of carbon monoxide?
number of covalent bond
Strong triple bond
intermolecular van der Waals forces
Hydrogen bonds
Why diamond has higher melting point than silica?
The number of covalent bond
The strength of intermolecular van der Waals force
The strength of electrostatic forces
The bond length
What factor affecting the melting and boiling point of magnesium sulphate?
Lattice energy
Hyration energy
Enthalpy change of solution
metallic bond
The melting point of potassium is lower than sodium, why?
atomic radius
number of delocalised electrons
packing of the structure
charge of the ion
Hydrogen chloride has lower boiling point than hydrogen bromide, why?
Bond length
Molecular size
presence of hydrogen bond
Atomic radius
CaO has higher melting point than CaCO3, why?
Charge density of Ca2+ higher
Charge density of CO32- is higher
Ionic radius of O2- is smaller
metallic bond in CaO is stronger
Which of the following is true recording GeCl4 and CCl4?
The boiling point of GeCl4 is higher due to longest bond length
The boiling point of GeCl4 is higher due to larger molecule
The boiling point of CCl4 is higher due to shortest bond length
The boiling point of CCl4 is higher due to smaller molecule
Compare the melting point of Na2O and MgO
The melting point of MgO > Na2O
due to higher charge of Mg2+
The melting point of MgO > Na2O
due to greater number of delocalised electron in Mg
The melting point of Na2O > MgO
due to larger ionic radius of Na+
The melting point of Na2O > MgO
due to higher charge density of Na+
Hydrogen fluoride has larger boiling point than hydrogen chloride, explain
Due to the intermolelar van der Waals forces
Due to the molecular size
Due to the hydrogen bond
Due to the number of covalent bond
Arrange the following compound with ascending melting and boiling point.
NaCl, K2O, Na, K, CO2, H2O
CO2, H2O, Na, K , K2O, NaCl
CO2, H2O, K, Na, NaCl, K2O
H2O, CO2, K, Na, NaCl, K2O
CO2, H2O, Na, K , NaCl, K2O
H2O, CO2, Na, K , NaCl, K2O
