IGCSE O Level Chemistry MCQs – Mock Test 169

College Chemistry Quiz with Answers PDF Download – Test 169

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College Chemistry Quiz – Mock Test 169 PDF Download

MCQ 841: The pH of the soil can be controlled through:

acid rains
neutralization
hydrolases
reversible reactions

MCQ 842: In Na₂CO₃, the relative atomic mass of sodium is:

MCQ 843: The proton number of Fluorine (F) is 9, the electron number is:

2, 5
2, 7
2, 9
2, 6

MCQ 844: In a titration, the endpoint is indicated through:

precipitation of salt
crystallization of salt
change in the color of solution
none of above

MCQ 845: Relative molecular mass of Sulfuric Acid (H₂SO₄) is:

IGCSE O Level Chemistry Quiz App & eBook – College Chemistry Admission Tests

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