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Q.

Is it true that chalk does not dissolve in water?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is true.
Those materials which are able to disappear or dissolve when we dissolve them in water are known as soluble materials whereas the ones that cannot dissolve are known as insoluble materials. Soluble substances include sugar and salt. Insoluble substances include sand and flour. Chalk is an example of insoluble material.
 
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