Crystallisation and Chemistry

Colour of Copper Sulphate crystals is ?

• Red

• Green

• Blue

• White

after the dissolution of crystals to form a solution, filtration is done to?

• Remove water soluble impurities

• Remove water insoluble impurities

• To change colour of the solution

• None of the above

The process of cooling of crystals should be done at a ________ rate

• Fast

• Moderate

• Slow

• Any

Crystallisation is based on the ____________

• Difference in melting point

• Difference in boiling point

• Difference in pressure

• Difference in solubility

Insoluble impurities from solution during crystallization are removed by ____________

• Drying

• Filtration

• Heating

• Cooling

Pure Copper Sulphate Crystals can be obtained by ________.

• Centrifugation

• Distillation

• Crystallisation

• Filtration

Formula of hydrated Copper Sulphate is ______.

• CuSO4.H2O

• CuSO4.4H2O

• CuSO4.5H2O

• CuSO4.6H2O

Crude sample of copper sulphate is also known as ?

• White Vitriol

• Green Vitriol

• Blue Vitriol

• Red Vitriol

Crystals are dried with the help of?

• Dryer

• Burner

• Filter paper

• All of the above

How many water of Crystallisation are present in Anhydrous copper sulphate?

• 0

• 1

• 2

• 5