1) Which metal is used in thermometer? a) sodium b) potasium c) mercury d) lithium 2) Which is the purest form of gold? a) 24 carat b) 14 carat c) 20 carat d) 10 carat 3) Which metal can be cut with a knife? a) silver b) sodium c) zinc d) aluminium 4) Cinnabar is an ore of a) magnesium b) mercury c) lead d) tin 5) Leaching is a process of a) reduction b) concentration of ore c) refining d) oxidation 6) Rusting can be prevented by a) painting b) galvanization c) greasing d) all of these 7) Oxides of non -metals turn a) red litmus blue b) blue litmus red c) no effect on litmus d) none of these

Metals and Non-Metals(Quiz)

door
Embedden

Scorebord

Visuele stijl

Opties

Template wisselen

Automatisch opgeslagen activiteit "" herstellen?