Advertisements
Advertisements
प्रश्न
Which method is better for recovering sugar from sugar solution : evaporation or crystallisation ? Give reason
for your answer.
Advertisements
उत्तर
Crystallization is a better than evaporation for recovering sugar from sugar solution. During evaporation, sugar can get charred on heating. However, in crystallization, no such problem occurs and we can get pure crystals of sugar.
APPEARS IN
संबंधित प्रश्न
Fill in the blank
Liquids have a definite ______
Give reason why copper metal is used for making electric wires.
Out of a colloid, solution and a suspension :
which one has the smallest particles ?
Explain what happens when a beam of light is passed through a colloidal solution.
Which of the following are chemical changes and which physical ? Give reason.
- a glass bottle breaking
- coal burning in air
- making a cake
- wool being knitted into a sweater
How would you prepare a saturated solution of sodium chloride in water at 25°C ? What will happen if this solution is cooled to 10°C ?
Which of the following can be called a suspension ?
One of the following represents the solution of solid in a solid. This one is :
Name the source from which nitrogen and oxygen are obtained on a large scale.
Name the process which can be used to recover salt from an aqueous salt solution.
Fill in the following blanks with suitable words :
Miscible liquids are separated by .....................
Fill in the following blanks with suitable words :
If a mixture contains iron filings as one of the constituents, it can be separated by using a .......................
Name one pair of liquids which can be separated by using a separating funnel.
The property which allows the metals to be hammered into their sheets is ______.
Name the metals that are used in jewellery.
Give some examples of the Tyndall effect observed in your surroundings?
A teabag placed in a cup of hot water will diffuse into the water.
Gas-solid is ______.
