Chemistry Practice Test – Separating Techniques for Mixtures

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The process of vapourising a liquid and then condensing the vapour is known as _______

A. distillation       B. Decantation      C. evaporation       D. fractional distillation

The following are examples of chemical changes EXCEPT _____

A. burning of woods      B. fermentation       C. freezing of liquids to solids      D. electrolysis

A simple substance which cannot be split into two simpler ones by any chemical methods is known as ______

A. an atom   B. matter   C.  an element   D. a molecule

The diagram above illustrate _______ method of separating mixtures.

A. Evaporation      B. Decantation       C. filtration      D. none of the above

The following are examples of chemical changes EXCEPT _____

A. melting of solids to liquids  
B. dissolution of metals in acids  
C. rusting of iron  
D. decay of substances

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