Separation Techniques - Part 1

Magnetic attraction can be used to separate the metals __________ as they are attracted to a magnet.

• iron, copper and gold

• iron, magnesium and silver

• iron, nickel and cobalt

• iron, silver and steel

Tags

NGSS.MS-PS2-5

How can you obtain iron filings from a mixture of brown sugar and iron filings?

• filtration

• evaporation

• magnetic appeal

• magnetic attraction

Which statement is TRUE?

• Compounds can be separated by physical methods of separation like filtration.

• Mixtures can be separated by physical methods of separation like filtration.

• Elements can be separated by physical methods of separation like filtration.

• All the above are true.

In the separation technique known as filtration, a soluble solid is separated from a solid-liquid mixture.

• TRUE

• FALSE

The setup above shows the separation of a mixture of sand in seawater. Sand does not dissolve in water. It is left as a residue. Which part of the diagram shows the residue?

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS1-2

The setup above shows the separation of a mixture of sand in seawater. Sand does not dissolve in water. The water can be collected as the filtrate. Which part of the diagram shows the filtrate?

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS1-2

The setup above shows the separation of a mixture of sand in seawater. Which option shows all the correct apparatus used in the setup?

• beaker, filter part, filter cone, round flask

• beaker, paper, cup, triangle flask

• beaker, filter funnel, filter paper

• beaker, filter paper, filter funnel, conical flask

A student accidentally dropped some expensive Himalayan salt in water. The Himalayan salt dissolves in water. How can the student obtain the salt from the saltwater?

• burn the salt

• evaporate all the water

• use filtration

• use a magnet

Tags

NGSS.MS-PS1-2

Table salt, also known as sodium chloride can be obtained from saltwater using the separation technique called evaporation to dryness because _____.

• salt easily decomposes on heating

• salt does not decompose on heating

• salt does not dissolve in water

• salt is edible

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Name the above separation technique.