Acid and Alkali

• Acids taste sour.
• Acids are corrosive.
• Acids turn blue litmus paper red.
• Acids have a pH value less than 7.
• Acids react with metals to produce hydrogen gas.
• Alkalis taste bitter.
• Alkalis are corrosive.
• Alkalis turn red litmus paper blue.
• Alkalis have a pH value more than 7.
• Alkalis do not react with metals.
• Acids and alkalis show their properties only in the presence of water.
• Acidic substances contain acids, while alkaline substances contain alkalis.
• Indicators are coloring substances that change color based on the substance tested.
• The pH scale is used to show the strength of acids or alkalis.
• Acids are sour, while alkalies are bitter.
• The pH scale measures the acidity or basicity of a solution on a logarithmic scale from 0 to 14.
• A neutral substance has a pH value of 7.
• Acids have a sour taste, turn blue litmus paper red, and produce hydrogen gas when reacted with metal carbonates.
• An acidic solution has a pH value less than 7.
• Neutralization reactions occur between an acid and an alkali, resulting in salt formation and water production.
• Sodium bicarbonate is also known as baking soda.
• Baking powder contains sodium bicarbonate along with other ingredients that release carbon dioxide during cooking.
• Ammonia (NH3) is a common household base used in cleaning products.
• Alkaline substances are bases or materials that can neutralize acids.
• Water has a pH of 7, which is considered neutral on the pH scale.
• Neutralisation is the reaction between an acid and an alkali which produces salt and water.
• The method used to carry out this reaction is called titration.
• Phenolphthalein is a common indicator used in titration, turning pink in the presence of an alkali and colorless in the presence of an acid.
• Sodium hydroxide is used to make detergent.
• Ammonia is used to make fertilisers.
• Potassium hydroxide is used to make soap.
• Magnesium hydroxide is used to make anticid pills.
• Ascorbic acid is used to make vitamin C
• Carbonic acid is used to make fizzy drinks.
• Sulphuric acid is used to make car battery.
• Vineger is used to make pickle.
• Hydrocloric acid + sodium hydroxide = Sodium Chloride
• Suphuric acid + Potassium hydroxide = Potassium sulphate
• Nitric acid + sodium hydroxide = Sodium Nitrate
• When calcium carbonate reacts with acidic solutions will produce carbon dioxide gas.