Lesson 2A.5
2A.5 Solvents and metallic bonding Quiz: Pearson Edexcel Chemistry, Unit 2
20 questions
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Lesson 2A.5, Solvents and metallic bonding: 20 multiple choice questions for the Pearson Edexcel Chemistry (9CH0), Unit 2: Bonding and Structure, written with Revision Ninja.
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The 20 questions
-
What particles are held together by electrostatic attraction in a metallic bond?
- Neutral atoms
- Cations and electrons
- Anions and protons
- Nuclei and neutrons
-
What happens when water dissolves sodium chloride?
- Molecules form dimers
- Ions are hydrated
- Covalent bonds break
- Electrons are transferred
-
What intermolecular interaction allows ethanol to dissolve readily in water?
- Permanent dipoles only
- Hydrogen bonding
- Ionic attraction
- London forces only
-
Why is water a poor solvent for halogenoalkanes?
- They are ionic
- Cannot form hydrogen bonds
- They are too small
- They lack carbon
-
Which solvent dissolves iodine best?
- Dilute sodium hydroxide
- Aqueous silver nitrate
- Water
- Hexane
-
Why are metals good electrical conductors?
- Delocalised electrons move
- Protons carry charge
- Fixed ions move
- Covalent bonds break
-
Why are metals malleable and ductile?
- Ion layers slide
- Bonds are directional
- Lattices are rigid
- Covalent bonds reform
-
Which metal has stronger metallic bonding, sodium or magnesium?
- Neither
- Magnesium
- Equal strength
- Sodium
-
Which solvent dissolves compounds soluble in both water and hexane?
- Tetrachloromethane
- Propanone
- Pure water
- Ethanol
-
What is the likely bonding type of a compound soluble in water but insoluble in hexane?
- Giant covalent
- Metallic
- Non-polar covalent
- Ionic or polar
-
Why does 1-bromobutane have poor solubility in water?
- It is a gas
- It is an alkali
- It is fully ionic
- No hydrogen bonds
-
What main intermolecular force exists between both iodine and hexane molecules?
- Hydrogen bonds
- Permanent dipoles
- Ionic bonds
- London forces
-
Which process allows polar water molecules to dissolve sodium chloride?
- Covalent bonding
- London force attraction
- Hydration of ions
- Hydrogen bonding
-
Why is metallic bonding stronger in magnesium than in sodium?
- Lower atomic mass
- Fewer electrons
- Higher ion charge
- Larger ionic radius
-
Why can solid sodium conduct electricity whereas solid sodium chloride cannot?
- Covalent bonds
- Fixed protons
- Delocalised electrons
- Mobile ions
-
Which functional group allows short-chain alcohols to dissolve in water?
- Carbonyl group
- Hydroxyl group
- Ester linkage
- Alkyl chain
-
What particles carry electrical current in a molten ionic compound?
- Mobile ions
- Delocalised electrons
- Neutral atoms
- Fixed cations
-
Which expression describes the general rule for solute and solvent compatibility?
- Dynamic equilibrium
- Octet rule
- Like dissolves like
- Opposites attract
-
Why does an aqueous solution of an ionic compound conduct electricity?
- Ions are mobile
- Protons are transferred
- Electrons are free
- Molecules are polar
-
Which physical property of solid metals is due to delocalised electrons?
- Brittleness
- High density
- Electrical conductivity
- Low melting point
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