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O Level Chemistry Practice Test 160

Catalysts and Enzymes Quiz Questions PDF Download - 160

The e-Book Catalysts and Enzymes Quiz Questions, catalysts and enzymes MCQ with answers PDF chapter 13-160 to learn online courses, o level chemistry tests. Practice Speed of Reaction trivia questions, catalysts and enzymes Multiple Choice Questions (MCQ Quiz) for online college degrees. The e-Book "Catalysts and Enzymes Quiz" App Download: catalysts and enzymes, chemical symbols, paper chromatography, molar mass, distillation: purification process test prep for accredited online colleges.

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Chapter 13 Quiz: Catalysts & Enzymes MCQs

MCQ: What is true about Enzymes?

A) they act as biological catalysts
B) they operate over a wide range of pH
C) they are highly specific
D) they operate over wide temperatures only

MCQ: Combining Copper(II) (Cu+2) with Oxygen (O2) results in

A) CuO
B) Cu2O
C) CuO2
D) Cu(OH)2

MCQ: Diazo reagent is used as a locating agent in the chromatography of

A) picric acids
B) benzoic acids
C) phenolic acids
D) salicylic acid

MCQ: Molar mass of (NH4)2SO4 is

A) 113.19 g/mol
B) 124.21 g/mol
C) 141.39 g/mol
D) 132.139 g/mol

MCQ: What is true about fractional distillation?

A) it cannot separate liquids whose boiling points are close
B) it can separate liquids whose boiling points are close
C) it can separate liquids whose boiling points are very high
D) none of above

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