Q.

Is it true that chalk dissolves in water?


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a

True

b

False   

answer is B.

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Detailed Solution

The above statement is false.
Substances that do not disappear or dissolve when mixed with water even after stirring are called insoluble substances. Chalk is made up of a white powder produced by grinding a specific type of stone.  Stones don't disappear or dissolve when mixed with water.
The correct statement would be, chalk does not dissolve in water.
 
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