Which of the following oxides behaves as conductor or insulator depending upon temperature ?

(a) TiO (b) $S i O_{2}$ (c) $T i O_{3}$ (d) MgO

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Solution

(c) Certain metal oxides like $V O_{2}, V O, V O_{3}, a n d T i O_{3}$ show metallic or insulating property depending upon temperature. As temperature varies metallic or insulating property varies. This is due to a variation in the energy gap between the conduction band and valence band.

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Which of the following oxides behaves as conductor or insulator depending upon temperature ? (a) TiO (b) SiO2 (c) TiO3 (d) MgO

(c) Certain metal oxides like VO2, VO, VO3, and TiO3 show metallic or insulating property depending upon temperature. As temperature varies metallic or insulating property varies. This is due to a variation in the energy gap between the conduction band and valence band.

Which of the following oxides behaves as conductor or insulator depending upon temperature ?

(a) TiO (b) $S i O_{2}$ (c) $T i O_{3}$ (d) MgO

(c) Certain metal oxides like $V O_{2}, V O, V O_{3}, a n d T i O_{3}$ show metallic or insulating property depending upon temperature. As temperature varies metallic or insulating property varies. This is due to a variation in the energy gap between the conduction band and valence band.