IGCSE A Level Chemistry MCQs - Chapter 22

Periodicity Trivia Questions and Answers PDF - 8

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Periodicity Questions & Answers PDF Download: MCQ Quiz 8

MCQ 36: Silicon dioxide reacts with an acid to form

water only
salt only
oxygen
water and salt

MCQ 37: The acidic molecules formed by non-metals of Period 3, act as

acids
bases
alkali
oxide

MCQ 38: In S₂Cl₂, the oxidation number is

MCQ 39: Consider the reaction: P₄O₁₀(s) + H₂O (l) → H₃PO₄ (aq). The moles of H₂O required to balance equation will be

MCQ 40: Oxide with very high relative melting point is

Na₂O
MgO
Al₂O₃
SiO₂

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