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5136. 10% oleum comprises of 10% free

September 7, 2025 by Admin

SO₂

H₂SO₃

SO₃

H₂SO₄

✅ The correct answer is option C.

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

5133. Digestion of wood-base materials (for manufacture of pulp) is done to

5139. __________ process is used for producing soda ash.

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