IGCSE O Level Chemistry Practice Test 10

Proton and Nucleon Number MCQ (Multiple Choice Questions) PDF - 10

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Proton & Nucleon Number Questions and Answers PDF Download: Quiz 10

MCQ 46: Purpose of a mass spectrometer is to determine the

A) charge of a particle

B) particles

C) mass of an atom

D) data for data loggers

MCQ 47: Which of the following is involved in oxidation?

A) loss of hydrogen

B) loss of oxygen

C) gain in hydrogen

D) gain in electrons

MCQ 48: Conversion of carbonate into oxides and carbon dioxide is called as

A) combustion

B) Thermal decomposition

C) Neutralization

D) Respiration

MCQ 49: Vacuum distillation is used in

A) under high pressures

B) under low pressures

C) gentle heating

D) quick heating

MCQ 50: In electrolysis of concentrated HCl, at the cathode

A) oxygen gas is given off

B) hydrogen gas is given off

C) chlorine gas is given off at anode

D) hydrogen chloride is given off

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