Sample Questions on Organic Compounds
Question 1: Write a note on the homologous series.
Answer:
Homologous series is a series of organic compounds containing characteristics functional group and the successive member differ from each other by a -CH2 group.
Organic compounds form homologous series such as alkanes, akenes, alknes, alcohol, amines, etc.
Question 2: What are volatile organic compounds?
Answer:
Volatile organic compounds are specific organic compounds with high vapour pressure and low water solubility. Volatile Organic Compounds are human-made chemicals that are used in the manufacturing of paints, pharmaceuticals, and refrigerants.
Question 3: Write the structural formula of the first 4 members of the homologous series of the following compounds
- Aldehydes
- Carboxylic acid
Answer:
Aldehydes
- H -CHO (methanal)
- CH3 – CHO (ethanal)
- CH3 – CH2 – CHO (propanal)
- CH3 – CH2 – CH2 – CHO (butunal)
Carboxylic Acid
- H – COOH (methanoic acid)
- CH3 – COOH (ethanoic acid)
- CH3 – CH2 – COOH (propanoic acid)
- CH3 – CH2 – CH2 – COOH (butanoic acid)
Question 4: Why are most organic compounds insoluble in water?
Answer:
Most organic compounds are insoluble in water because they are non-polar molecules and water is a polar solvent.
Question 5: What organic compounds are used in medicine?
Answer:
Organic Compounds used in medicinal products are atorvastatin, fluticasone, and clopidogrel other than that proteins, fats and carbohydrates are also sometimes used as medicines.
Question 6: How to identify an organic compound?
Answer:
Organic compounds can easily be identified by carbon atoms as all organic compounds contain carbon atoms.
Classification of Organic Compounds
Organic compounds are defined as chemical compounds which contain carbon atoms linked with other elements through simple covalent bonds. These elements could be connected by single covalent bonds, double covalent bonds, or triple covalent bonds. In other words, we can say that all organic compounds contain carbon as their central atom. We must note that all compounds containing carbon are not considered organic compounds, such as carbonates(-CO3), bicarbonates(-HCO3), etc are carbon-containing compounds but not organic. Whereas we can say with surety that all organic compounds contain carbon atoms but vice versa is not true.
In this article, we will learn about organic compounds and their various classification based on bonds, functional groups, and structure. As there are millions of organic compounds and studying them individually is not possible. Therefore, the classification of organic compounds is required. So, let’s start learning about Organic Compounds and their classification.