IGCSE O Level Chemistry Exam Prep MCQs – Mock Test 60

Exothermic Reactions MCQ with Answers PDF Download – Test 60

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Free Exothermic Reactions MCQs App Download (iOS & Android): "Exothermic reactions take place when energy given out in making bonds is"; MCQ with answers: more than the energy taken in for breaking bonds, less than the energy taken in for breaking bonds, and equal to the energy taken in for breaking bonds. Practice Energy from Chemicals Questions and Answers, Google e-Book to download free chapter for chemistry digital mentoring.

Exothermic Reactions MCQ – Mock Test 60 PDF Download

MCQ 296: Exothermic reactions take place when energy given out in making bonds is:

less than the energy taken in for breaking bonds
more than the energy taken in for breaking bonds
equal to the energy taken in for breaking bonds
none of above

MCQ 297: While the Potassium Iodide (KI) is a powerful reducing agent, the:

iodide ion is oxidized to iodine
iodide ion is reduced to iodine
iodine is reduced to iodide ion
iodine is oxidized to iodide ion

MCQ 298: In Sulfuric Acid (H₂SO₄), the chemical composition of sulfur is:

0.0204
0.3265
0.6531
0.9821

MCQ 299: Soluble salt is:

silver chloride AgCl
Lead Chloride PbCl₂
Sodium chloride NaCl
mercury chloride HgCl₂

MCQ 300: Hydrogen (H₂) is not:

heavier than carbon dioxide
lighter than air
colored
insoluble

IGCSE O Level Chemistry MCQs App & eBook – Exothermic Reactions Exam Prep

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