IGCSE O Level Chemistry MCQs – Practice Test 17 (Chapter 3)

Chemical Formulae and Equations MCQs with Answers PDF Download – Test 17

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Free Chemical Formulae and Equations Study App Download: If Magnesium Carbonate (MgCO₃) reacts with Hydrochloric Acid (HCl), the products will involve; MCQ with answers: carbonic acid, magnesium chloride, hydrogen gas, and carbon dioxide. Solve Salts: Hydrogen of Acids Quiz Questions, download Google e-Book (Free Chapter) to improve chemistry online readiness.

Chemical Formulae & Equations MCQs with Answers PDF Download: MCQ Quiz 17

MCQ 81: What is correct about covalent compounds?

they are not made of ions
they are not formed through exchange of electrons
they are bad conductor of electricity
all of above

MCQ 82: If Magnesium Carbonate (MgCO₃) reacts with Hydrochloric Acid (HCl), the products will involve:

magnesium chloride
carbonic acid
hydrogen gas
carbon dioxide

MCQ 83: In Na₂CO₃.10H₂O, percentage of Carbon is:

0.4201
0.0422
0.042
0.46

MCQ 84: A salt_(s) and H₂_(g) is produced if the reactants are an:

acid and oxide
acid and metal
acid and base
acid and sodium hydrogen carbonate

MCQ 85: The formula of Copper Hydroxide is:

Cu(OH)₂
CuHOH
CuO₂
CuH₂O

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