Advertisements
Advertisements
प्रश्न
Which of the following can be separated by using a separating funnel and which cannot be separated by using a separating funnel ?
- water and kerosene mixture
- water and acetone mixture
Give reasons for your answer.
Advertisements
उत्तर
Water and kerosene mixture can be separated by using a separating funnel because these two are immiscible liquids and differ in their densities. Kerosene is less dense than water and water comes out first from the separating funnel.
On the other hand, acetone and water mixture cannot be separated by using a separating funnel because they are miscible liquids. They are rather separated by fractional distillation.
APPEARS IN
संबंधित प्रश्न
Compare the properties of metals and non-metals with respect to
- alleability
- ductility
- electrical conductivity.
What is a mixture ? Give two example of mixtures.
Many indigestion mixtures are suspensions. What do the instructions written on the bottle of an indigestion mixture tell us before taking the mixture, and why ?
Name one pair of substances whose mixture can be separated completely by distillation.
How will you separate a mixture of kerosene oil and water ? Explain with the help of a labelled diagram.
Define the following:
Heterogeneous mixture
Tick (√) the correct alternative from the choice given for the following statement:
A gas dissolved in a liquid can be separated by
State what information is provided by the formula of calcium hydroxide – Ca(OH)2
How will you separate a mixture containing saw dust, naphthalene and iron filings?
Give the characters a mixture.
