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O Level Chemistry Practice Test 137

Periodic Table: O Level Chemistry Quiz Questions PDF - 137

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Chemistry Quiz: Periodic Table: O Level Chemistry MCQs PDF Download - 137

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

A) same group
B) same period
C) same type
D) same mass number

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

A) they can only exist in water
B) they are lesser ionic
C) they are highly covalent
D) none of above

MCQ: Examples of conductors include

A) mercury
B) Diamond
C) sulphur
D) phosphorus

MCQ: Acids react with metal carbonates to form

A) salt, water, hydrogen gas
B) salt, water, CO2
C) salt and gas only
D) salt and water only

MCQ: Electrolysis can be useful for

A) electroplating
B) electro refining
C) electro coating
D) none of above

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