O Level Chemistry MCQs – Certification Test 235

Measuring Speed of Reaction MCQ (Question 235) – App & e-Book Download

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MCQ 235: During a chemical reaction, the:

mass of catalyst remains unchanged
physical state of catalysts remain unchanged
changes in the chemical composition of catalysts may be observed
chemical composition of the catalyst may change

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Measuring Speed of Reaction MCQ App & e-Book – O Level Chemistry Textbook Tests

Ionic Compounds and Crystal Lattices Test 246

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pH Scale and Acid and Alkali Test 248

Chemical Reactions Test 249

Mixtures and Compounds Test 250

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Strong and Weak Acids Test 253

Mixtures and Compounds Test 254

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