S1 28/2 - How Would You Separate This?

Vera used filtration as her first step to separating the components of the mixture. Which of the following mixtures is the residue she obtained?

• iron filings and salt

• iron filings and sand

• iron filings and water

• salt and sand

Vera used filtration as her first step to separating the components of the mixture. Which of the following mixtures is the filtrate she obtained?

• iron filings and water

• salt and sand

• salt and water

• sand and water

Vera wants to separate the iron filings and sand in the residue she obtained.

Which of the following separation techniques should Vera carry out to remove the iron filings from the iron filings and sand mixture?

• crystallisation

• evaporation to dryness

• filtration

• magnetic attraction

Vera wants to separate the salt from the filtrate she obtained.

Which of the following separation techniques should Vera carry out to separate the salt from the salt solution (filtrate)?

• crystallisation

• evaporation to dryness

• magnetic attraction

• microfiltration

Vera heard from a friend that magnetic attraction can be used to separate any metal from a mixture. Is her friend correct?

• Her friend is correct.

• Her friend is wrong.

• There is not enough information to tell.