SC-785
Choosing a separation method
Lower Sec Science · Secondary 1 · Medium · Choosing a separation method
A mixture contains sand, salt and iron filings. A student wants to obtain dry solid iron filings from the mixture.
Which sequence of methods should the student use?
Which sequence of methods should the student use?
- Use a magnet to remove the iron filings from the mixture.
- Add water, filter, then evaporate to get iron filings.
- Heat strongly to burn away sand and salt, leaving iron filings.
- Dissolve in water and use chromatography to separate iron filings.
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.