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प्रश्न
Which of the following statements is not true?
विकल्प
Materials are grouped for convenience.
Materials are grouped to study their properties.
Materials are grouped for fun.
Materials are grouped according to their uses.
Solution:
उत्तर
Materials are grouped for fun.
Explanation -
Materials are not grouped for fun. They are grouped for convenience, to study their properties and according to their uses in systematic manner.
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