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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:
MATTER - PROPERTIES AND TRANSFORMATION: Mixtures And Pure Substances
A solution is a:
Pure substance.
Heterogeneous mixture.
Suspension.
Homogeneous mixture.
The mobile phase in paper chromatography is typically the:
Separated components.
Baseline.
Paper.
Solvent.
A pure substance has:
Fixed melting and boiling points.
No definite melting or boiling point.
Variable melting and boiling points.
Only a melting point, no boiling point.
Chromatography works on the principle that components of a mixture have different:
Sizes and shapes.
Solubilities in the mobile phase and affinities for the stationary phase.
Melting points.
Boiling points.
Which property distinguishes a compound from a mixture?
Components of a compound can be easily separated by physical means.
Components of a compound are chemically bonded.
A compound always contains only one type of element.
A compound is always a solid.
