IGCSE O Level Chemistry Practice Test 137

Periodic Table: O Level Chemistry Quiz Questions and Answers PDF - 137

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Periodic Table: O Level Chemistry Questions and Answers PDF Download: Quiz 137

MCQ 681: The same number of shells are found in elements of

same group
same period
same type
same mass number

MCQ 682: What is true about hydroxonium ions (H₃O⁺)?

they can only exist in water
they are lesser ionic
they are highly covalent
none of above

MCQ 683: Examples of conductors include

mercury
Diamond
sulphur
phosphorus

MCQ 684: Acids react with metal carbonates to form

salt, water, hydrogen gas
salt, water, CO₂
salt and gas only
salt and water only

MCQ 685: Electrolysis can be useful for

electroplating
electro refining
electro coating
none of above

IGCSE O Level Chemistry Exam Prep Tests

Valence Electrons MCQs

pH Scale: Acid and Alkali MCQs

Properties: Bases and Reactions MCQs

Dissolving, Filtering and Evaporating MCQs

Ionic and Covalent Substances MCQs

Change of State MCQs

Methods of Purification: Sublimation MCQs

Strong and Weak Acids MCQs

Reactants MCQs

Acidity or Alkalinity MCQs

Chemical and Ionic Equations MCQs

Oxidation and Reduction MCQs

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