Metals and Their Compounds
Chemistry · 50 practice questions
General properties of metals; alkali metals (sodium) — NaOH (production by electrolysis of brine, uses), Na₂CO₃/NaHCO₃ (Solvay process, uses e.g. glass manufacture), NaCl (occurrence, economic importance, recovery); alkaline-earth metals (calcium) — CaO, Ca(OH)₂, CaCO₃ (properties, uses, cement composition, Ca²⁺ test); Aluminium (bauxite purification, electrolytic extraction, properties, uses, Al³⁺ test); Tin (extraction, properties, uses); first transition series metals (electron configuration, oxidation states, complex ion formation, coloured ions, catalysis); Iron (extraction, properties, uses, forms, steel vs. iron, Fe²⁺/Fe³⁺ tests); Copper (extraction, properties, uses, CuSO₄ preparation, Cu²⁺ test); Alloys — steel, stainless steel, brass, bronze, type-metal, duralumin, soft solder, permalloy, alnico (constituents and uses).
- Specify the general properties of metals and determine the extraction method suitable for each, relating it to their properties.
- Compare the chemical reactivities and uses of metals and their compounds, and determine specific tests for metallic ions.
- Determine the production process for compounds of these metals and specify cement's chemical composition.
- Describe the purification of bauxite and specify tin's ores, extraction and uses.
- Identify the general properties of transition metals and the reasons for them, and determine IUPAC names of simple complexes.
- Determine extraction methods, properties and uses of iron and copper, and their compound preparations (e.g. CuSO₄).
- Specify the constituents and uses of alloys and compare their properties to pure metals.
Try a few questions
- Practice question 1
Transition metals are generally characterized by properties such as
- A.a fixed, single oxidation state in all their compounds
- B.an inability to act as catalysts in any reaction
- C.variable oxidation states and the formation of coloured compounds
- D.colourless compounds in every case
Show the answer
C. variable oxidation states and the formation of coloured compounds
Variable oxidation states and characteristically coloured ions/compounds are hallmark transition metal traits.
- Practice question 2
The purification of bauxite before the electrolytic extraction of aluminium mainly aims to
- A.obtain pure aluminium oxide (alumina) from the raw ore
- B.directly produce pure aluminium metal without any electrolysis
- C.remove all traces of oxygen from the ore
- D.convert the ore entirely into aluminium chloride
Show the answer
A. obtain pure aluminium oxide (alumina) from the raw ore
The Bayer process purifies bauxite specifically to yield the pure alumina needed for subsequent electrolysis.
- Practice question 3
Amphoteric metals, such as aluminium and zinc, are mainly notable for their ability to
- A.react with acids only, never with bases
- B.react with bases only, never with acids
- C.react with neither acids nor bases under any conditions
- D.react with both acids and bases (alkalis) to form salts
Show the answer
D. react with both acids and bases (alkalis) to form salts
This dual reactivity toward both acids and bases is the defining feature of an amphoteric metal.
More UTME Chemistry topics
Practise with instant feedback
Answer questions one at a time and see the right answer and the reason straight away. Free to start.
Start practising