IGCSE O Level Chemistry Exam Prep MCQs – Mock Test 20

Proton and Nucleon Number MCQ with Answers PDF Download – Test 20

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Download the "Proton & Nucleon Number MCQs" App (Android & iOS): If the number of protons and electrons are 8 respectively, the valence electrons are; MCQ with answers: 4 in number, 2 in number, 8 in number, and 6 in number. Practice Structure of Atom Questions and Answers, Google e-Book to download free chapter to follow chemistry digital lessons.

Proton & Nucleon Number MCQ – Mock Test 20 PDF Download

MCQ 96: If the number of protons and electrons are 8 respectively, the valence electrons are:

2 in number
4 in number
6 in number
8 in number

MCQ 97: The chemical formula of Caustic soda is:

NaOH
KOH
MgO
Ca(OH)₂

MCQ 98: The difficulty of discharge is lowest in:

Chloride ions
Bromide ions
hydroxide ions
sulphate ions

MCQ 99: The substance is treated both as a radical and an element. It is:

sulphate
hydrogen
carbonate
Phosphorus

MCQ 100: What is true about oxidizing agents?

they are mostly non-metals
they are mostly metals
their oxidation state decreases
they are mostly transition metals

IGCSE O Level Chemistry MCQs App & eBook – Proton & Nucleon Number Exam Prep

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