ChemistryChapter 18: Alcohol
Acidity (weak) — Not Carboxylic
No CO2 with Na2CO3. pH near 7 in water.
Learning objectives
- Define not carboxylic using accurate chemistry terms.
- Explain why not carboxylic matters within acidity (weak).
- Apply the learning unit to an FBISE-style example, comparison, diagram, or calculation.
Definition
No CO2 with Na2CO3. pH near 7 in water. Litmus little change. Carboxylic acids later do fizz. Acidity primary > secondary > tertiary in gas phase; school compares ethanol vs water. This page separates the idea from the wider topic “ACIDITY (WEAK)” so it can be revised and assessed on its own.
Important terms
- NOT CARBOXYLIC
- No CO2 with Na2CO3.
- ACIDITY (WEAK)
- Alcohols are very weak acids (weaker than water in some comparisons, book-dependent).
Overview
Study this learning unit in three steps:
Key Idea
No CO2 with Na2CO3. pH near 7 in water. Litmus little change. Carboxylic acids later do fizz. Acidity primary > secondary > tertiary in gas phase; school compares ethanol vs water.
Examples Ethanol no CO2 · Ethanoic does · Sort the families
Exam Application
Exam tell alcohol vs acid: carboxylic acid + carbonate -> CO2 alcohol + carbonate -> no CO2 both may have OH in the formula, different groups
Examples Ethanol no CO2 · Ethanoic does · Sort the families
WHAT — ACIDITY (WEAK) — NOT CARBOXYLIC
No CO2 with Na2CO3. pH near 7 in water. Litmus little change. Carboxylic acids later do fizz. Acidity primary > secondary > tertiary in gas phase; school compares ethanol vs water. This page separates the idea from the wider topic “ACIDITY (WEAK)” so it can be revised and assessed on its own.
WHY — Why this topic matters
ACIDITY (WEAK) — NOT CARBOXYLIC is an independent FBISE learning unit because students must use its definitions, conditions, equations, or trends separately in explanations and calculations.
HOW — How it works
No CO2 with Na2CO3. pH near 7 in water. Litmus little change. Carboxylic acids later do fizz. Acidity primary > secondary > tertiary in gas phase; school compares ethanol vs water. Examples: Ethanol no CO2; Ethanoic does; Sort the families. Exam use: Exam tell alcohol vs acid: carboxylic acid + carbonate -> CO2 alcohol + carbonate -> no CO2 both may have OH in the formula, different groups
Explanation
No CO2 with Na2CO3. pH near 7 in water. Litmus little change. Carboxylic acids later do fizz. Acidity primary > secondary > tertiary in gas phase; school compares ethanol vs water. Examples: Ethanol no CO2; Ethanoic does; Sort the families. Exam use: Exam tell alcohol vs acid: carboxylic acid + carbonate -> CO2 alcohol + carbonate -> no CO2 both may have OH in the formula, different groups
In simple words
Federal Board Class 11 Chemistry learning unit. Easy wording; no provincial-board material added.
Key points
- need COOH to fizz
- carbonate test
Exam preparation
Exam Focus
Quick revision
Revision Zone
Review the key facts, formulas and checks before you move on.Acidity (weak) — Not Carboxylic
Sticky Notes · Quick Revision
Core idea
- No CO2 with Na2CO3. pH near 7 in water. Litmus little change. Carboxylic acids later do fizz. Acidity primary > secondary > tertiary in gas phase; school compares ethanol vs water. This page separates the idea from the wider topic “ACIDITY (WEAK)” so it can be revised and assessed on its own.
WHAT
- No CO2 with Na2CO3.
WHY
- ACIDITY (WEAK) — NOT CARBOXYLIC is an independent FBISE learning unit because students must use its definitions, conditions, equations, or trends separately in explanations and calculations.
HOW
- No CO2 with Na2CO3. pH near 7 in water. Litmus little change. Carboxylic acids later do fizz. Acidity primary > secondary > tertiary in gas phase; school compares ethanol vs water. Examples: Ethanol no CO2; Ethanoic does; Sort the families. Exam use: Exam tell alcohol vs acid: carboxylic acid + carbonate -> CO2 alcohol + carbonate -> no CO2 both may have OH in the formula, different groups
Common misconception
- Do not treat not carboxylic as the same as every other part of acidity (weak); define this unit and use its own evidence, steps, or conditions.
FBISE exam check
- Define acidity (weak) — not carboxylic, explain how it works, and support the answer with one relevant example.
60-second revision
- No CO2 with Na2CO3.
- Ethanol no CO2
- Exam link: need COOH to fizz.
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