extraction of metals

What is an ore?

• a solid metal
• a rock cantaining a metal combined with other elements
• an element
• an object used to row a boat

Tags

NGSS.MS-PS1-1

Which element cannot be extracted from its ore by reduction with carbon?

• iron
• aluminium
• copper
• lead

Which series is used to predict the reactions of metals with carbon and other elements?

• reactionary series
• reaction series
• redox series
• reactivity series

What is the name of the process that uses electricity to separate the elements in a compound?

• reduction
• electrolysis
• extraction
• mining

How could you extract sodium from molten sodium chloride?

• reduction by carbon
• electrolysis
• decomposition
• oxidation

Which of these elements is unlikely to be found in a pure form?

• gold

• platinum

• aluminium

• silver

Which of these elements is unlikely to be found uncombined in the earth's crust?

• gold

• platinum

• aluminium

• silver

Which of these metals is most likely to be found locked in an ore?

• silver

• gold

• potassium

• platinum

haematite is the name for

• Zinc Oxide
• Iron ore
• Calcium carbonate
• silver ore

Which statement is correct about extraction of iron from its ore?

• Iron is more difficult to extract than copper
• Iron is the easiest metal to extract
• Iron cannot be extracted from its ore