Question

name the apparatus that can be used to separate a mixture of mustard oil and water. Explain its working

Answer 1

A separation funnel can be used to separate a mixture of mustard oil and water.
In a separation funnel, the liquid with more density (in this case water) settles at the bottom while the liquid with lesser density (mustard oil) is at the top.

Answer 2

The Apparatus That Can Be Used To Separate A Mixture Of Mustard Oil And Water is a Separatory funnel

WORKING OF SEPARATORY FUNNEL-

• A separatory funnel also known as a sep funnel or separation funnel is glassware used to separate the components of a (liquid-liquid) mixture into two immiscible liquids phases of different densities.
• When the funnel is kept still after agitation the liquid with high density settles at the bottom and liquid with low density will stay above.
• The apparatus is conical in shape with a hemispherical end.
• It has a stopper and a stopcock at the top and bottom respectively.
• The bottom outlet is designed to drain liquid out of the funnel.
• The mixture that has to be separated is poured through the top outlet with the stopcock at the bottom closed.
• The funnel is closed and shaken gently multiple times
• The funnel is inverted and to release excess vapor pressure stopcock is opened.
• for the phases of the liquids to separate, the funnel is kept aside for some time.
• The bottom tap and bottom stopcock are opened slowly to allow the liquid present in the bottom layer to be released by gravitation.
• After the removal of the bottom layer, the stopcock is closed and the liquid left is poured out through the top into another container.

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