IGCSE A Level Chemistry Practice Test 55

Ionic Bonds and Covalent Bonds Quiz PDF: Questions and Answers - 55

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Ionic Bonds & Covalent Bonds Questions and Answers PDF Download: Quiz 55

MCQ 271: In ammonium ion, the electrons required between hydrogen ion and nitrogen ion are

A) 1

B) 2

C) 3

D) 4

MCQ 272: The atomic number of Strontium (Sr) is

A) 12

B) 38

C) 20

D) 56

MCQ 273: One of the oxides that do not react with water is

A) MgO

B) Al₂(SO₄)₃

C) SiO₂

D) Na₂O

MCQ 274: The by-products of reaction MgCl₂ + H₂O, if HCl is allowed to react, will be

A) MgO_(s) only

B) Mg(OH)₂_(s) only

C) HMgO₂_(s)

D) MgO_(s) and Mg(OH)₂_(s)

MCQ 275: In a free radical reaction, the free radicals are formed at

A) initiation step only

B) propagation step only

C) termination step

D) initiation and propagation step

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