of the methylene group 5. Caustic alkalis (KOH, NaOH) are highly corrosive. The long chain length of fatty acid has a high melting point than short-chain fatty acids. 4. Amino acids are basically building blocks of proteins. Oleic and linoleic unsaturated fatty acids are widely distributed in plants. Properties of Carboxylic Acids. Solutions of acids can turn blue litmus paper to red. They are insoluble in water. Acid solutions have pH values lesser than 7. Alkalis have the following properties: Alkalis have bitter taste and a slippery soapy feel. 1) Acids to have a sour taste 2) Acids release H- ions 3) Acids have a pH below 7. Turns red litmus blue. Most of the properties of carboxylic acids are a result of the presence of the carboxyl group. There are four common reactions of alkalis: Fats and fatty acids are soluble in organic solvents, such as petroleum ether, benzene and chloroform. Strong Acids Strong Bases Weak Acids Weak Bases Physical/Chemical Properties of Acids Physical/Chemical Properties of Bases Arrhenius Model Bronsted-Lowry Model Comparison Between Strong/Weak Acids/Bases Common Household Items PH and POH Explanation Buffers Acid… 2. Chemical Properties of Acids Chemical Properties of Bases 3. (More about pH value in the next sub-topic) Alkaline solutions turn red litmus paper blue. Physical Properties of Alkalis. Some physical and chemical properties of these compounds are discussed in this subsection. PHYSICAL PROPERTIES OF ACIDS: 1. The solubility of fatty acids decrease due to increase in no. Physical Properties of Acids Physical Properties of Bases; Sour in taste in aqueous solution; Mineral acids (HCl, HNO3, H2SO4) are highly corrosive. Optical Isomerism: All amino acids, except glycine which has two H atoms on the α-carbon, have an asymmetric α-carbon (the 4 valence bonds are attached to different atoms or groups). That was a brief overview regarding acid properties. This chapter includes the Physio chemical properties of Amino acids.Before going to the physical and chemical properties of amino acids, we should brush back the amino acids basic points. 1. Alkaline solutions have pH values greater than 7. Some of the characteristics of the most important acids are their physical properties, their strength and their ability to neutralize bases, among others. Important Physical Properties of Amino Acids: 1. Bitter in taste in aqueous solution. Properties of Fatty Acids and Fats: Physical Properties: 1. Acids are water-soluble. So, here are the physical properties of acids : 1. Physical Properties of Fatty Acid: Saturated fatty acids are solid at room temperature. Turns blue litmus red. Chemical Properties of Alkalis. Phosphoric acid is also a weak acid and phosphoric acid uses include rust removal, acidifying food and beverages and as a pH adjuster in several cosmetics, among others. There are many different properties of bases. Acids, bases and their properties are a large domain of chemistry and there is much more detail involved that is provided here. Acids are sour. The most common examples of unsaturated fatty acids are mentioned in table. Physical Properties of Carboxylic Acids. Properties of Acids and BasesChemistryAcids and BasesWhat Are Acids and Bases?Properties of Acids and BasesThe pH ScaleTitrationsBuffers It's frequently possible to tell acids and bases apart from one another by some of their easily observed chemical and physical properties. Acids have a SOUR taste 2. Unsaturated fatty acids are liquid at room temperature. React with metal carbonates to produce salt carbon dioxide and water. Physical Properties of Acids.