IGCSE A Level Chemistry MCQs - Chapter 19

Moles and Equations MCQ (Multiple Choice Questions) PDF - 10

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The MCQ: Magnesium (Mg) burns in oxygen (O₂) to form; "Moles and Equations" App Download Android & iOS (Free) with answers magnesium hydroxide (mg(oh)₂), magnesium peroxide (mg₂o₂), magnesium oxide (mgo) and magnesium dioxide (mgo₂) for online school programs. Practice mole calculations quiz questions, download Apple Book (Free Sample) for free online college classes.

Moles and Equations Questions & Answers PDF Download: MCQ Quiz 10

MCQ 46: Magnesium (Mg) burns in oxygen (O₂) to form

magnesium peroxide (Mg₂O₂)
magnesium hydroxide (Mg(OH)₂)
magnesium oxide (MgO)
magnesium dioxide (MgO₂)

MCQ 47: The number of electrons (e^-) which are needed to complete the outer shell of each atom determines formula of

covalent compound
ionic compound
co-ordinate compound
metallic compound

MCQ 48: 1 mole of a sodium chloride (NaCl) has number of sodium ions (Na⁺) equal to

6.02 x 10²³
5.02 x 10²³
4.02 x 10²³
3.02 x 10²³

MCQ 49: The name given to ions containing oxygen (O₂) are usually called

oxalates
oxides
ates
oxy

MCQ 50: The sum of protons (p⁺) and neutrons (n⁰) in an atom is called its

atomic number
nucleon number
Avogadro's number
protonic identity

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