0.000 s
Revise smart, understand Better
Select Lessons (10)
ENERGY: Action of electricity on materials
ENERGY: Action of heat on materials
MATTER - PROPERTIES AND TRANSFORMATION: Chemical Reactions And Equations
MATTER - PROPERTIES AND TRANSFORMATION: Chemical Symbols, Formulae And Valency
MATTER - PROPERTIES AND TRANSFORMATION: Effect Of Heat On Substances
MATTER - PROPERTIES AND TRANSFORMATION: Introduction To Chemistry - Symbols
MATTER - PROPERTIES AND TRANSFORMATION: Mixtures And Pure Substances
MATTER - PROPERTIES AND TRANSFORMATION: Periodic table - Families of elements and Relative reactivity
MATTER - PROPERTIES AND TRANSFORMATION: Reaction With Oxygen of air
MATTER - PROPERTIES AND TRANSFORMATION: The Atom And Sub-Atomic Particles
5/50 MCQs for:
ENERGY: Action of electricity on materials
Which material would you choose for the insulation of an electrical wire?
Zinc.
Rubber.
Aluminum.
Copper.
In the context of electrical conductivity, what makes metals distinct from non-metals (except graphite)?
Metals have higher melting points.
Metals have mobile electrons in their structure.
Metals are shiny.
Metals are solid at room temperature.
Which of the following is an example of a non-electrolyte?
Salt solution.
Hydrochloric acid solution.
Sugar solution.
Vinegar (acetic acid solution).
Pure ethanol (C₂H₅OH) is generally classified as a:
Conductor.
Semiconductor.
Non-conductor.
Electrolyte.
When sodium chloride (NaCl) is dissolved in water, the resulting solution:
Becomes a solid.
Conducts electricity.
Changes color.
Does not conduct electricity.
