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For the solid state syntheses of ferrite spinels, it is ______________ for the precursor methods to yield phases of accurate stoichiometry

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For the solid state syntheses of ferrite spinels, it is ______________ for the precursor methods to yield phases of accurate stoichiometry

(a) Important

(b) Not necessary

(c) Controllable

(d) Meaningless

I had been asked this question in exam.

Enquiry is from Solid State Reaction in division Preparative Methods of Solid State Chemistry

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Correct option is (a) Important

The best explanation: It is important for the precursor methods to yield the phases of accurate stoichiometry by careful control of the experimental conditions since several chromites and ferrites are valuable magnetic materials whose properties may be sensitive to purity and stoichiometry.

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