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C1 Topic 4 Knowledge Test SDCC Flashcards | StudBud

Explore/C1 Topic 4 Knowledge Test SDCC

C1 Topic 4 Knowledge Test SDCC

7 terms·StudBud Administration·204 plays

Complete this test to revise C1 Topic 4.

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Questions 7

Answers

1
Describe two ways of extracting metals from their ores.
heating with water and electrolysis
heating with electrolysis and carbolysis
electrolysis and heating with carbon
carbolysis and thermal synthesis
2
Which part of the reactivity series contains metals least likely to corrode?
middle left
bottom
middle
bottom
3
Why is gold used for jewellery?
unreactive and does not corrode
corrodes quickly
becasue she liked it and put a ring on it
its super shiny and all pretty and stuff
4
Name the bottom two metals in the reactivity series
platinum and silver
gold and sodium
gold and platinum
sodium and platinum
5
Crude oil is a mixture of…
Hydrocarbons
fuels
carbohydrogens
oils
6
What is an alloy?
a mixture of sodium and carbon dioxide
a mixture of more than one metal
a mixture of metals and sodium
more than one non metal
7
Why is iron often alloyed?
increase strength
reduces shinyness
decrease strength
increase malleability