Q. _________ is the hardest oxide and is hence used where high wear resistance at high temperature is required.

(A) Beryllium
(B) Zirconia
(C) Alumina
(D) Magnesia

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✅ Correct Answer: (C) Alumina

Published by Team MCQ Buddy ⭐ 27.12K Points at 07-May-2023 09:10 pm in Chemical Engineering Basics

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