Which of the following is/are the characteristics of a metal oxide if – McqOptions

MCQOPTIONS

1.	Which of the following is/are the characteristics of a metal oxide if the Pilling and Bed worth ratio is less than 1?
A.	Protective
B.	Unprotective
C.	Unprotective and insufficient oxide
D.	Unprotective and sufficient oxide
Answer» D. Unprotective and sufficient oxide

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