Which of the following oxides shows electrical properties like metals?
(i) Si O2 (ii) Mg O (iii) SO2(s) (iv) Cr O2

Metallic oxides show metal like behaviour. SiO‚Äč2 and SO2 are acidic oxides and MgO is basic in nature. Chromium oxides are metallic oxide and it has electrical properties. 

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b)mgO -magnesium oxide
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