'Spinel', a refractory mineral is chemically represented as____________________?
Correct answer: A. MgAl2O4
- A. MgAl2O4
- B. MgAl2O3
- C. MgSO4
- D. MgAl2O3.2H2O
Explanation
Spinel is the compound magnesium aluminate, formed by combining MgO and Al2O3, so its formula is MgAl2O4. The other formulas either have an incorrect oxygen ratio or represent magnesium sulfate or a hydrated compound.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Plant Design and Economics
803 free Plant Design and Economics MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Plant Design and Economics questions
With increase in the density of silica refractories, its_______________?
Mixing of ground refractory material and water is done in a ______________ mill?
Silicon carbide refractories are used in the _____________?
SiO2 percentage in firebrick is about____________________?
Which of the following impurities reduces the refractoriness of magnesite bricks ?
Semi-silica bricks compared to silica bricks have_______________?