rmula
1. (a) What are organic compounds?
(b) What is vital force theory? Why was it discarded?
2. (a) Name a few sources of organic compounds.
(b) Give the various applications of organic chemistry.
3. Organic chemistry plays a key role in all walks of life.
Discuss.
4. Carbon shows some unique properties, name them.
5. Explain the following:
(a) tetravalency,
(b) catenation
6. Write any four properties of organic compounds that
distinguish them from inorganic compounds.
7. Why are organic compounds studied as a separate
branch of chemistry ?
8. What are hydrocarbons ? Compare saturated and
unsaturated hydrocarbons?
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Answers
1- Organic compound, any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen.
2- carbohydrates, lipids, proteins
3- Organic chemistry plays an important part in our daily life because food, clothes, paper, ink, rubber, soap, perfumes, medicines etc.
4- unique properties of carbon are catenation and tetravalency
5- catenation --> Catenation is the binding of an element to itself through covalent bonds to form chain or ring molecules.
tetravalency--> an element which have 4 valency or four valence electron is known as tetravalency.
6- differences
1) Organic compounds are produced by living things.
2) Inorganic compounds can form salts. 3) Organic compounds contain carbon. 4) Organic compounds contain carbon-hydrogen bonds.
5) Inorganic compounds contain metal atoms.
7- Because of different properties of organic compounds
8- All the carbon compounds which contain just carbon and hydrogen are called hydrocarbons. Saturated hydrocarbons are the compounds containing only single covalent bonds. These are also known as alkanes. Unsaturated hydrocarbons are the straight chain compounds containing double or triple covalent bonds.
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