2. What are alkalis!
3. What is neutralisation reaction? Give an example.
Differentiate between concentrated acids and dilute ac
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The bases which are soluble in water are called alkalis.
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A neutralization reaction is when an acid and a base react to form water and salt and involves the combination of hydrogen ions and hydroxyl ions to generate water. The neutralization of a strong acid and strong base has a pH equal to 7.
Example – 1: When Sodium hydroxide is added to hydrochloric acid. Sodium chloride and water are formed.
NaOH+HCl⟶NaCl+H2O
Example - 2: Milk of magnesia, which is a base, is given as antacid in the case of indigestion, to neutralize the more acid produced in the stomach.
Mg(OH) 2 +2HCl⟶MgCl 2 +2H 2O
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