Chemistry
The diagram represents fractional distillation for separation of mixtures. Answer the following:
Can two immiscible liquids be separated by this process.
Separation of liquids by this process is based on which physical property.
If methyl alcohol & water are to be separated, which liquid would remain in flask 'X' after condensation.
Give a reason for the above answer.
State the purpose of the fractionating column in the apparatus.
Answer
No, immiscible liquids are separated by separating funnel.
Separation of liquids by this process is based on difference in boiling points of the two liquids.
Water remains in flask 'X' after condensation.
As water has a higher boiling point so it remains in flask 'X' after condensation and methyl alcohol having lower boiling point boils and is collected in receiver after condensation.
Fractionating column helps in condensation & separation of vapours.
Related Questions
Select the correct answer from A, B, C, D & E for each statement given below:
A: Gunpowder
B: Iodine
C: Boron
D: Helium
E: Bromine
A diatomic molecule
A metalloid
A non-metal which is lustrous
A mixture consisting of elements & a compound
A noble gas
Select the correct answer from the choice in bracket to complete each sentence
Dust in air is an example of …………… [heterogeneous/homogeneous] mixture.
A soluble solid is separated from an insoluble solid by …………… [fractional crystallisation / solvent extraction].
The reactive element from the two monoatomic elements is …………… [neon/silicon].
Compounds are …………… [homogeneous or heterogeneous/ always homogeneous] in nature.
An example of a monoatomic molecule is …………… [hydrogen/helium].
Match the separation of components in List I with the most appropriate process in List II
List I List II 1. Naphthalene from naphthalene & sodium chloride. A: Separating funnel 2. Cream from milk B: Sublimation 3. Kerosene oil from kerosene oil & water C: Boiling 4. Lead nitrate from an aqueous solution of lead nitrate D: Centrifugation 5. Ammonia from an aqueous solution of ammonia E: Distillation Give reasons for the following statements:
Components in a mixture can be separated by physical methods only.
Centrifugation can be used for separating an insoluble heavier solid, present in an insoluble solid-liquid mixture.
The filter paper made into a cone & placed in a funnel for filtering out the solid particles in a solid-liquid mixture, should be moistened before placing.
Brass & bronze are examples of mixtures, while copper sulphate & lead nitrate are examples of compound.
Zinc is considered an element, while zinc sulphide is considered a compound.