IGCSE O Level Chemistry MCQs - Chapter 13

Speed of Reaction Quiz Questions and Answers PDF - 7

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Speed of Reaction Questions & Answers PDF Download: MCQ Quiz 7

MCQ 31: Uses of enzymes do not include

production of insulin
production of cancer drugs
drug to combat plague
drug to fight dwarfism

MCQ 32: Biological catalyst to convert Hydrogen Peroxide (H₂O₂) into water (H₂O) and oxygen (O₂) is

amylase
hydrolase
catalase
protease

MCQ 33: Rate of decomposition of hydrogen peroxide can be expedited through

glycerin
manganese oxide
vanadium oxide
platinum

MCQ 34: What is true about Enzymes?

they act as biological catalysts
they operate over a wide range of pH
they are highly specific
they operate over wide temperatures only

MCQ 35: In a certain volume, higher temperature

increases concentration of gases
decreases concentration of gases
liquefies the gases
the reaction may not occur at all

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