Question

What are the chemical properties of acids and bases ?

Answer 1

CHEMICAL PROPERTIES OF ACIDS

• Acids change the colour of litmus from blue to red.
• They convert the colour of Methyl Orange from Orange/Yellow to Pink.
• Acids turn the pink colour of Phenolphthalein to colourless.
• Acids can conduct electricity
• Some Acids are highly corrosive in nature which means that they corrode or rust metals
• Acids tend to evolve hydrogen gas whilst reacting with an active metal such as Zn, Mg, etc.
• They produce H+ ions when mixed with water.
• Acids lose their acidity when mixed with a base.
• Acids react with bases to form salt and water.
• When equal amounts of acid and base are combined the process of neutralization occurs and salt and water is formed
• The pH value of acid is from 0-6
• Acids are sour in taste. CHEMICAL PROPERTIES OF BASES
• Bases change the colour of litmus from red to blue.
• They are bitter in taste.
• Bases lose their basicity when mixed with acids.
• Bases react with acids to form salt and water.
• They can conduct electricity.
• Some bases are great conductors of electricity.
• Bases like sodium hydroxide, potassium hydroxide, etc are used as electrolytes.
• Alkalis are bases that produce hydroxyl ions (OH-) when mixed with water.
• Strong alkalis are highly corrosive in nature whereas other alkalis are mildly corrosive.
• The pH value of bases ranges from 8-14.