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Which among the following compounds can show the properties of a Ferroelectric substance?

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in Chemistry – Class 12 by (188k points)
Which among the following compounds can show the properties of a Ferroelectric substance?

(a) BaTiO3

(b) PbZrO3

(c) MnO2

(d) CrO2

I got this question in an internship interview.

This intriguing question comes from Solid State Magnetic Properties in division Solid State of Chemistry – Class 12

1 Answer

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Correct answer is (a) BaTiO3

To explain I would say: At the Curie temperature (around 120 ºC) paraelectric BaTiO3 transforms into a ferroelectric structure. Ferroelectricity is the characteristic of certain substances that possess a spontaneous electric field which can be reversed by applying an external electric field.

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