Basic function of SiO2 is (i) Physical strength (ii) Isolation (iii) Passivation from external contaminants (iv) Electrical connection (v) Selective diffusion

Basic function of SiO2 is (i) Physical strength (ii) Isolation (iii)

1.	Basic function of SiO2 is (i) Physical strength (ii) Isolation (iii) Passivation from external contaminants (iv) Electrical connection (v) Selective diffusion
A.	(ii) only
B.	(iii) and (v) only
C.	(ii), (iii) and (v) only
D.	All
Answer» D. All

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Basic function of SiO2 is (i) Physical strength (ii) Isolation (iii) Passivation from external contaminants (iv) Electrical connection (v) Selective diffusion

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