IGCSE O Level Chemistry MCQs – Mock Test 128

Chemical Equations MCQ with Answers PDF Download – Test 128

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Free "Chemical Equations Study" App Download (iOS & Android): Consider Calcium Carbonate (CaCO₃) and Hydrochloric Acid (HCl) as reactants, molecules of Hydrochloric Acid (HCl) required to balance the equation will be; MCQ with answers: 2, 1, 4, and 3. Practice Chemical Formulae and Equations Questions and Answers, Google e-Book to download free chapter for chemistry virtual educational guidance.

Chemical Equations MCQ – Mock Test 128 PDF Download

MCQ 636: Consider Calcium Carbonate (CaCO₃) and Hydrochloric Acid (HCl) as reactants, molecules of Hydrochloric Acid (HCl) required to balance the equation will be:

MCQ 637: Symbol of gold is:

MCQ 638: Purpose of Lean Burn engines is to:

produce less air pollution
consume lesser oxygen
produce more efficient fuel combustion
use them in sky rockets

MCQ 639: What is correct about Praseodymium?

it is the longest name in the period table
it is most volatile metal
it is a recently discovered noble gas
it is an excellent conductor of electricity

MCQ 640: Fractional distillation is particularly useful if the objective is to:

form crystals
examine sublimates
examine a immiscible solution of two liquids
separate a miscible solution of two liquids

Chemical Equations MCQs App & eBook – IGCSE O Level Chemistry Entrance Tests

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