Write general properties of Acid and Base. Define indicator and explain how this
help of proper diagram.
4
47.
for test of acid and base along with name of indicators.
Answers
Answer:
General Properties of Acids and Bases
What are Acids and Bases?
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 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 chemical reactions of acids and bases are:
Acids And Bases
Physical Properties of Acids and Bases
The physical properties of acids and bases are listed in the table below.
Properties Acids Bases
Colour Mineral acids are colourless liquids but sometimes sulphuric acid becomes yellow due to impurities. Some organic acids are white coloured solids.
Examples: benzoic acid
Bases are colourless except the hydroxides of iron and copper.
Taste Sour Bitter
Touch – Slippery
Solubility Soluble in water Some bases are soluble in water.
Physical Properties of Acid
The word “acid” comes from the Latin word for sour. This distinguishable property helps identify acids from other compounds such as salt and bases. Many acids can be hazardous if ingested and shouldn’t be tasted.
Once the acid binds to the base, it becomes a neutral substance. Often this reaction can lead to water and salt. This is often seen when strong acids react with strong bases.
The acids are driving electricity. Outside this, the batteries are used to produce electricity. The acid that conducts electricity strongly is a strong acid, and the acid that conducts electricity weakly is a weak acid.