Organic chemistry is the study of carbon compounds. Long ago, people thought these compounds could only come from living things (vital force theory). But Friedrich Wöhler proved them wrong by making urea from a mineral substance. Today, organic chemistry is everywhere – in medicines, fuels, plastics, and food!
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❓ FAQ – Fundamental Principles of Organic Chemistry
Q1: What is organic chemistry?
Organic chemistry is the study of carbon compounds and their reactions.
Q2: What was the vital force theory?
It was the idea that organic compounds could only be made by living things, later disproved by Friedrich Wöhler.
Q3: Who disproved the vital force theory?
Friedrich Wöhler, by synthesizing urea from a mineral compound.
Q4: Why is organic chemistry important?
It is essential for medicines, fuels, plastics, food, and many everyday chemicals.
Q5: What does this PDF include?
Notes, MCQs, short & long questions, and solved exercises for easy exam preparation.
📝 MCQs – Fundamental Principles of Organic Chemistry
1. Who disproved the vital force theory?
(a) Dalton
(b) Lavoisier
(c) Friedrich Wöhler ✅
(d) Mendeleev
2. Urea was synthesized from which compound?
(a) Ammonium nitrate
(b) Ammonium cyanate ✅
(c) Sodium carbonate
(d) Calcium oxide
3. Organic compounds mainly contain:
(a) Carbon & hydrogen ✅
(b) Sodium & chlorine
(c) Oxygen & nitrogen only
(d) Metals & non-metals
4. Functional group determines:
(a) Molecular weight
(b) Chemical properties ✅
(c) Melting point only
(d) Color of compound
5. Cracking of petroleum is done to:
(a) Convert smaller molecules to larger
(b) Break long hydrocarbons into smaller useful ones ✅
(c) Remove impurities
(d) Increase sulfur content
6. Isomerism occurs when compounds have:
(a) Same properties
(b) Different molecular formula
(c) Same molecular formula but different structures ✅
(d) Only different functional groups