IGCSE O Level Chemistry Certification MCQs – Practice Test 27 (Chapter 3)

Chemical Formulae and Equations Quiz with Answers PDF Download – Test 27

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Chemical Formulae & Equations Exam Questions and Answers PDF Download: Test 27

MCQ 131: The formula of calcium hydrogen sulfate is:

CaHSO₄
Ca(HCO₃)₃
Ca(HSO₄)₃
Ca(HSO₄)₃

MCQ 132: Valency is also referred to as the:

combining power
volatility
rigidity
number of electron shells

MCQ 133: Calcium carbonate CaCO₃ is a:

solid
liquid
gas
aqueous

MCQ 134: The chemical formula of aluminum nitrate is:

AlNi₃
Al₃Ni₂
Al(NO₂)₃
Al(NO₃)₃

MCQ 135: Mass of an element in a compound can be calculated through:

Ar of the atoms/Mr of the compound
Mr of the atoms/Ar of the compound
(Ar of the atoms/Mr of the compound) × mass of sample
(Ar of the atoms/Mr of the compound) × mass of sample

IGCSE O Level Chemistry Quiz App & e-Book – Chemical Formulae & Equations Certification Guide

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