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5270. Portland cement consists mainly of

September 7, 2025 by Admin

CaO & SiO₂

SiO₂ & Al2O₃

CaO & Al2O₃

CaO & FE₂O₃

✅ The correct answer is option A.

Categories Chemical Engineering, Chemical Process MCQs, Engineering Tags Chemical Engineering MCQs, Chemical Process MCQs, Engineering MCQs

5267. Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as __________ oil.

5273. Producer gas consists mainly of

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