NEW
Font size
WorksheetsALE REVISION
Total questions: 10
Worksheet time: 20mins
One molecule of the oxide of element Z reacts with six molecules of water to produce an acidic
compound. What is element Z?
Al
P
Na
S
Which property is not associated with the element sodium?
It can react with cold water to form hydrogen.
It forms a basic oxide.
It forms a neutral chloride
It is an oxidising agent.
Which properties do compounds of aluminium and silicon have in common?
Aqueous solutions of their chlorides contain aluminium or silicon cations.
Their chlorides have co-ordinate bonding.
Their oxides are amphoteric.
Their oxides are insoluble in water.
Consecutive elements X, Y and Z are in the third period of the Periodic Table. Element Y has the highest first ionisation energy and the lowest melting point of these three elements.
What could be the identities of X, Y and Z?
sodium, magnesium, aluminium
magnesium, aluminium, silicon
silicon, phosphorus, sulfur
aluminium, silicon, phosphorus
Which oxide, when mixed with water, will produce the solution with the lowest pH?
CO2
Na2O
P4O10
SiO2
Why does aluminium oxide dissolve in sodium hydroxide solution?
Aluminium oxide can behave as an acid.
Aluminium oxide can behave as a base.
The bonding in aluminium oxide is ionic.
Aluminium oxide has a giant structure.
Which statement about enthalpy changes is correct?
Enthalpy changes of atomisation are always negative.
Enthalpy changes of combustion are always positive.
Enthalpy changes of formation are always positive.
Enthalpy changes of neutralisation are always negative.
In which set do all the molecules have all their atoms arranged in one plane?
AlCl3, BF3, PH3
AlCl3, CO2, NH3
BF3, C2H4, C3H6
C2H4, CO2, H2O
Ammonium metavanadate, NH4VO3, can be used to make a solution containing VO2Cl, which contains chloride ions.
What is the change in the oxidation number of vanadium in this reaction?
-1
0
+1
+2
In a chemical system the particles involved have a range of energies. This can be shown on a graph called the Boltzmann distribution.
Which statement correctly explains the effect of a catalyst on the particles in a chemical system?
A catalyst enables particles with a lower energy to collide successfully.
A catalyst increases the number of particles with higher energies.
A catalyst increases the number of particles with the most probable energy value.
A catalyst increases the value of the most probable particle energy.
