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5525. Main constituent of limestone is

September 7, 2025 by Admin

CaCO₃

MgCO₃

Na₂CO₃

CaSO₄

✅ The correct answer is option A.

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

516. An association of two or more persons for the purpose of engaging into a business for profit is called ____________________?

518. The sewer which transports the sewage to the point of treatment, is called________________?

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