Q.

What are crystals and how can table salt be used to create sodium chloride crystals? Choose the correct option from the following:


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a

The purest solid form of a substance is called crystal. Crystals of sodium chloride can be prepared from common salt by the process of crystallization

b

The purest form of a substance is called crystal. Crystals of sodium chloride can be prepared from common salt by the process of sieving

c

The impure form of a substance is called a crystal. Crystals of sodium chloride can be prepared from common salt by the process of sieving  

d

The impure form of a substance is called crystal. Crystals of sodium chloride can be prepared from common salt by the process of crystallization

answer is B.

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Detailed Solution

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Crystals are a substance's most pure solid form. Crystals of sodium chloride can be prepared from common salt by the process of crystallization.
Crystals have a definite geometrical shape and are the purest solid form of a substance. The process of formation of crystals is named crystallization; this process forms sodium chloride crystals. This method uses boiling water to dissolve the maximum amount of common salt. The solution is then filtered; this filtered solution is left undisturbed, and then the pure sodium chloride will aggregate to form crystals.
 
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