write the physical properties of acids and bases with examples
Answers
Answer:
Property Acid Base
Taste Sour (vinegar) Bitter (baking soda)
Smell Frequently burns nose Usually no smell (except NH3!)
Texture Sticky Slippery
Reactivity Frequently react with metals to form H2 React with many oils and fats
Acids are chemical substances which are characterized by a sour taste in an aqueous medium. They have the tendency to turn blue litmus red. On the other hand, bases are chemical substances which are characterized by a bitter taste and are slippery to the touch. Some of the bases are soluble in water while others are not. Water soluble bases are known as alkalis. They have the tendency to turn red litmus blue. Acids and bases react with a wide range of chemical compounds to form salts. Some of the chemical reactions of acids and bases are:Reactions of acids and bases with metals: When a metal reacts with an acid, it generally displaces hydrogen from the acids. This leads to the evolution of hydrogen gas. The metals combine with remaining part of acids to form a salt. For example reaction of sulphuric acid with zinc.
Answer:
Acids generally taste sour due to the sour H+ ion bases taste bitter due to the OH- ion, but they may have other tastes depending on the other part of the molecule. Bases are usually soapy in nature. Acids corrode active metals, Bases denature protein. Acids have a pH less than 7, Bases have a pH greater than 7.