Powdery materials can be guarded against caking tendency on storage by

1.	Powdery materials can be guarded against caking tendency on storage by
A.	providing irregular grain size.
B.	providing minimum percentage of voids.
C.	having maximum possible points of contact.
D.	none of these.
Answer» E.

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Powdery materials can be guarded against caking tendency on storage by

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