A. Give reasons for the following. 1. Milk is a mixture. 2. Ammonium chloride from sand is separated by sublimation. 3. A condenser is used in the process of distillation. 4. Oil in water is separated by using a separating funnel. 5. Miscible liquids are separated by fractional distillation. il
Answers
Answer:
phosphoric acid is present in milk
it's a separation technique
to cool down the reaction
so that oil molecules don't undergo with water
it's a separation technique
Answer:
1) Main compounds of milk are lactose and casein. And it is also called a colloidal mixture (i.e. in which one substance of microscopically dispersed insoluble or soluble particles is suspended throughout another substance). Therefore milk is regarded as a mixture not as a pure substance. So this is the required answer.
2) In the case of ammonium chloride and sand, ammonium chloride is the sublimate and changes to vapor when heated. This process leaves behind the sand in its natural state. The ammonium chloride vapor is then condensed and reverts back to its solid state, resulting in the effective separation of the two solids.
3) Condenser is a cooling unit used in the distillation process. Distillation is a separating technique used to separate two liquids based on the difference between the boiling points of the liquids present in the mixture. ... For cooling the vapors back to liquid droplets the condenser is fitted.
4) Oil and water are two immiscible liquids which do dissolve in each other. Separating funnel is used for immiscible liquids whereas filtration funnel is used for separation between solids and liquids. Complete step by step answer: Two immiscible liquids are always separated by using Separating Funnel.
5) A mixture of two miscible liquids can be separated by the process of fractional distillation. The separation of two liquids by fractional distillation depends on the difference in their boiling points.
Explanation:
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