IGCSE O Level Chemistry Competitive Exam MCQs – Mock Test 99

Salts: Hydrogen of Acids Notes Questions with Answers PDF – Download Test 99

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Free Salts: Hydrogen of Acids Study App Download (iOS & Android): People requiring an x-ray of the stomach are given a porridge of; MCQ with answers: baso₄, pbso₄, k₂co₃, and na₂co₃. Study Salts and Identification of Ions and Gases Questions and Answers, Apple Book to download free chapter to maximize educational outcomes.

Salts: Hydrogen of Acids Notes Q&A PDF Download – Mock Test 99

MCQ 491: People requiring an x-ray of the stomach are given a porridge of:

PbSO₄
BaSO₄
Na₂CO₃
K₂CO₃

MCQ 492: Electrolyte liquid may include:

solutions only
molten solids only
gases
solution and molten solids

MCQ 493: What is correct about electrons?

they have negligible mass
they have relative charge of -1
their charge is opposite and equal to a proton
all of above

MCQ 494: Which of them is included in the uses of electrolysis?

electroplating
electro refining
extraction of metals
all of above

MCQ 495: Consider the equation ZnO + NaOH + H₂O → Na₂Zn(OH)₄. Moles of NaOH required to balance the equation would be:

IGCSE O Level Chemistry Notes App & eBook – Salts: Hydrogen of Acids Competitive Exam

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