WorksheetsYear 10 January Assessment Revision 2021
Total questions: 35
Worksheet time: 31mins
Which statement is accurate regarding subatomic particles?
electrons are the heaviest particle, with a positive charge
protons and electrons are equal in mass with positive charges
electrons are neutral with the least mass
protons have a positive charge with a mass of 1 and neutrons are neutral with the same mass as a proton
Which of the following is a conclusion of Rutherford's gold foil experiment?
The nucleus is negatively charged
The atom is dense solid and is indivisible
The mass is conserved when atoms react chemically
The nucleus is very small and the atom is mostly empty space
80% of Boron is Boron-11 and 20% of Boron is Boron-10. Calculate the relative atomic mass of Boron to one dp.
17.1
10.2
10.8
11
Francium (Fr) is the most reactive element in group 1 because...
it has the smallest number of outer electrons
its 1 outer electron is very far from the nucleus, so little energy is needed to remove it
How can we separate an insoluble solid from a liquid?
chromatography
evaporation
filtration
condensation
A student drew a dot cross diagram with 7 outer electrons. Which of the following elements might have the student drawn?
Cl (Chlorine)
Ne (Neon)
N (Nitrogen)
Li (Lithium)
Ionic bonding is between a
nonmetal and nonmetal
metal and nonmetal
metal and metal
Depends on the situation
Covalent bonding is between a
nonmetal and nonmetal
metal and nonmetal
metal and metal
It depends on the situation
Predict the bond between Mg and Cl
covalent
ionic
metallic
none of the above
CaCl2 is an example of what type of bond?
Covalent
Metallic
Ionic
Fe + S → FeS
0.8 moles of Fe are allowed to react an excess of S. What is the mass of FeS produced?
(Ar of Fe = 56, Ar of S = 32)
25.6 g
44.8 g
70.4 g
88 g
Zn + 2HCl → ZnCl2 + H2
When 14.6 g of HCl is used, what is the mass of H2 produced?
(Ar of H = 1, Ar of Cl = 35.5)
0.2 g
0.4 g
0.8 g
7.3 g
What does displacement mean?
A chemical reaction where a less reactive metal takes the place of a more reactive metal in a compound.
A chemical reaction where a more reactive metal takes the place of a less reactive metal in a compound.
A more reactive metal is removed from a compound.
Magnesium chloride + Sodium → ?
Sodium chloride + Magnesium
Magnesium chloride + Sodium (No change)
Sodium magnesium + Chlorine
Zn(OH)2 + HNO3 ---> H2O + Zn(NO3)2
What term is given to a compound which contains atoms of carbon and hydrogen only?
alkene
hydrocarbon
alkane
saturated
Alkenes have the general formula:
CnH2n
CnH2n+1
CnH2n+2
CnHn
What term describes alkene molecules that contain a C=C double bond?
saturated
unsaturated
Alkanes have the general formula:
CnH2n
CnH2n+1
CnH2n+2
CnHn
What process is used to separate crude oil in hydrocarbons with different chain lengths?
distillation
fractional distillation
cracking
polymerisation
What is the term given to the process by which longer chain hydrocarbons are broken down into shorter length alkanes and alkenes?
fractional distillation
evaporation
cracking
polymerisation
Name the following hydrocarbon
alkane
pentene
pentane
alkene
When testing for alkenes (unsaturation) bromine water turns from...
orange --> blue/black
colourless --> pink
orange --> colourless
orange --> clear
The term polymerisation refers to
The forming of atoms into the monomer.
The length of the polymer chain.
The type of plastic.
The forming of the polymer chain.
True or False? "Percentage yield is calculated by dividing the maximum theoretical mass of product by the mass of product actually made and multiplying by 100"
True
False
What is the relative formula mass (Mr) of KOH?
39
28
56
What is the volume of one mole of oxygen at room temperature and pressure?
24dm3
24cm3
24mol/dm3
True or false? "Hydrochloric acid and magnesium react to produce magnesium chloride and hydrogen"
True
False
True or false? "Condensation polymerisation involves monomers with a single functional group"
True
False
What is produced when ethene is hydrated with steam in the presence of a catalyst?
Ethanol
Water
Oxygen
In substances containing small molecules...
the intermolecular forces are much stronger than the covalent bonds within the molecules
the covalent bonds within the molecules are much stronger than the intermolecular forces
the covalent bonds within the moleculesa re teh same strength as the intermolecular forces
