Chemistry Grade 11 Unit 2 Exam
Questions & Answers (Grade A+)
List of Hydrocarbons -
correct answer ✅Methane→CH₄
Ethane→C₂H₆
Propane→C₃H₈
Butane→C₄H₁₀
Pentane→C₅H₁₂
Hexane
Heptane
Octane
Nonane
Decane
Combustion Reactions -
correct answer ✅Fuel + Oxygen → Water + Carbon Dioxide
Synthesis Reactions -
correct answer ✅A + B → AB
Decomposition Reactions -
correct answer ✅AB → A + B
, Chemistry Grade 11 Unit 2 Exam
Questions & Answers (Grade A+)
Single Displacement Reactions -
correct answer ✅A + BC → AC + B
USE ACTIVITY SERIES
Double Displacement Reactions -
correct answer ✅AB + CD → AD + CB
USE SOLUBILITY TABLE
Uniqueness of Carbon -
correct answer ✅Carbon is unique in its ability to take many forms
(has four valence electrons)
→will tend to covalently bond with four other atoms to form a
stable octet
Carbon can form bonds with 1,2 or 3 other carbon atoms
→Not possible for nearly any other element
Carbon is in all organic materials on earth
Saturated vs. Unsaturated Carbon Compounds -
correct answer ✅Carbon-carbon or carbon hydrogen bonds are
saturated compounds
Questions & Answers (Grade A+)
List of Hydrocarbons -
correct answer ✅Methane→CH₄
Ethane→C₂H₆
Propane→C₃H₈
Butane→C₄H₁₀
Pentane→C₅H₁₂
Hexane
Heptane
Octane
Nonane
Decane
Combustion Reactions -
correct answer ✅Fuel + Oxygen → Water + Carbon Dioxide
Synthesis Reactions -
correct answer ✅A + B → AB
Decomposition Reactions -
correct answer ✅AB → A + B
, Chemistry Grade 11 Unit 2 Exam
Questions & Answers (Grade A+)
Single Displacement Reactions -
correct answer ✅A + BC → AC + B
USE ACTIVITY SERIES
Double Displacement Reactions -
correct answer ✅AB + CD → AD + CB
USE SOLUBILITY TABLE
Uniqueness of Carbon -
correct answer ✅Carbon is unique in its ability to take many forms
(has four valence electrons)
→will tend to covalently bond with four other atoms to form a
stable octet
Carbon can form bonds with 1,2 or 3 other carbon atoms
→Not possible for nearly any other element
Carbon is in all organic materials on earth
Saturated vs. Unsaturated Carbon Compounds -
correct answer ✅Carbon-carbon or carbon hydrogen bonds are
saturated compounds
