Basic Inorganic Chemistry Lesson

Inorganic Chemistry Recap

Inorganic

• Periodicity

• Group 2

• Group 7

• Transition Metals

• Reactions of inorganic compounds

Y12

Multiple Choice

The diagram shows how a property of Period 3 elements varies across the period.

• Atomic radius

• Electronegativity

• First ionisation energy

• Melting point

Multiple Choice

Which element has the highest first ionisation energy?

• Aluminum

• Phosphorous

• Silicon

• Sulphur

Multiple Choice

Which of these Period 3 elements has the highest melting point?

• Aluminum

• Phosphorous

• Sulfur

• Sodium

Multiple Choice

Which of the following is a correct statement about the trend in atomic radius across Period 3 of the Periodic Table?

• radius increases because the atoms have more electrons

• radius decreases because nuclear charge increases

• radius increases because shielding (screening) increases

• radius decreases because shielding (screening) decreases

Multiple Choice

Which of these elements has the highest second ionisation energy?

• Na

• Mg

• Ne

• Ar

Multiple Choice

Which one of the following statements is correct?

• The first ionisation energies of the elements in Period 3 show a general decrease from sodium to chlorine.

• The electronegativities of Group 2 elements decrease from magnesium to barium.

• The strength of the intermolecular forces increases from hydrogen fluoride to hydrogen chloride.

• The ability of a halide ion to act as a reducing agent decreases from fluoride to iodide.

Multiple Choice

Which substance is used to reduce titanium(IV) chloride in the extraction of titanium metal?

• Magnesium

• Manganese

• Vanadium

• Zinc

Multiple Choice

Which statement about barium sulfate is correct?

• It is soluble in water at a temperature of 100 °C.

• It is used in medicine because it does not dissolve in body fluids.

• It is a pale yellow solid.

• It reacts with acidified barium chloride solution.

Multiple Choice

Which compound is used to treat the symptoms of indigestion?

• MgO

• Mg(OH)₂

• CaO

• Ca(OH)₂

Multiple Choice

Which one of the following statements is correct?

• The first ionisation energies of the elements in Period 3 show a general decrease from sodium to chlorine.

• The electronegativities of Group 2 elements decrease from magnesium to barium.

• The electronegativities of Group 2 elements decrease from magnesium to barium.

• The ability of a halide ion to act as a reducing agent decreases from fluoride to iodide.

Multiple Choice

Which statement is correct about the reaction between concentrated sulfuric acid and solid sodium bromide?

• Bromide ions are reduced.

• Hydrogen bromide and sulfur are formed.

• Sulfuric acid acts as an oxidising agent.

• Bromine and hydrogen sulfide are formed.

Multiple Choice

Which statement about astatine is correct?

• Astatine has a greater electronegativity than bromine

• Astatine is a better oxidising agent than bromine

• Astatine has a greater boiling point than bromine

• Astatine has a greater first ionisation energy than bromine

Multiple Choice

Which species is not produced by a redox reaction between solid sodium iodide and concentrated sulfuric acid?

• Na₂SO₄

• H₂S

• S

• SO₂

Multiple Choice

Which of these species is the best reducing agent?

• Cl₂

• Cl⁻

• I₂

• I₂

Multiple Choice

The boiling points of the halogens increase down Group VII because

• covalent bond strengths increase.

• bond polarities increase.

• the surface areas of the molecules increase.

• electronegativities increase.

Multiple Choice

An aqueous solution of a sodium salt gave no precipitate when treated with either silver nitrate solution or barium chloride solution. Which one of the following could be the formula of the sodium salt?

• NaI

• Na₂SO₄

• NaBr

• NaF

Multiple Choice

Which one of the following statements concerning halogen chemistry is true?

• Sodium chloride produces chlorine when treated with concentrated sulphuric acid.

• Sodium chloride produces chlorine when treated with bromine.

• Sodium bromide produces bromine when treated with concentrated sulphuric acid.

• Sodium bromide produces bromine when treated with iodine in aqueous potassium iodide.

Y13

Multiple Choice

Which element forms an ionic oxide that reacts with strong alkalis?

• Aluminum

• Magnesium

• Sodium

• Sulphur

Multiple Choice

Which is the formula of the main aluminium-containing species present when aluminium oxide is added to an excess of water?

• [Al(H₂O)₆]³⁺(aq)

• Al(H₂O)₃(OH)₃(s)

• [Al(H2O)2(OH)4]−(aq)

• Al2O3(s)

Multiple Choice

Which compound gives a colourless solution when an excess of dilute aqueous ammonia is added?

• MgCl₂

• AgCl

• CuCl₂

• AlCl₃

Multiple Choice

Aqueous C₂O ions react with MnO ions in acidic solution according to the equation

5 C₂O + 2MnO + 16H⁺ → 2Mn²⁺ + 10CO₂ + 8H₂O

Under the same conditions Fe²⁺ ions also react with MnO ions. How many moles of MnO ions are required to react exactly with one mole of Fe(C₂O₄).2H₂O?

• 0.4

• 0.6

• 2.5

• 7.5

Multiple Choice

Which statement is correct about this reaction?

[Co(NH₃)6]²⁺ + 3H₂NCH₂CH₂NH₂ → [Co(H₂NCH₂CH₂NH₂)₃]²⁺ + 6NH₃

• The co-ordination number of cobalt decreases.

• The enthalpy change is large and positive.

• The entropy change is large and positive.

• The shape of the complex changes from octahedral.

Multiple Choice

What is the final species produced when an excess of aqueous ammonia is added to aqueous aluminium chloride?

• [Al(NH₃)₆]³⁺

• [Al(OH)₃(H₂O)₃]

• [Al(OH)₄(H₂O)₂]^–

• [Al(OH)(H₂O)₅]²⁺

Multiple Select

Which complex exists as optical isomers?

• [Ag(NH3)2]+

• [Co(C₂O₄)₃]^4–

• [Cu(EDTA)]^2–

• [Cu(NH₃)₄(H₂O)₂]²⁺

Multiple Choice

Which is not a correct statement?

• Transition metals form coloured ions and complexes

• Transition metals display variable oxidation states

• A ligand accepts a pair of electrons from a transition metal

• A complex is a central metal atom or ion surrounded by ligands

Multiple Choice

An oxide of vanadium catalyses the following reaction:

⇌ SO₃ (g)

What is the formula of the vanadium-containing intermediate formed in this reaction?

• V₂O

• VO

• V2O3

• V₂O₄