Question

an aqueous solution of sodium chloride is neutral but an aqueous solution of sodium carbonate is basic

Answer 1

NaCl is salt of strong acid HCl and strong base NaOH. It does not undergo hydrolysis as there is no reaction between ions of salt NaCl with water.Aqueous solution of NaCl contains equal number of H+ and OH- ions,hence it is neutral in nature.

On other hand,sodium carbonate is a salt of weak acid H₂CO₃ and strong base NaOH. When it is dissolved in water,it undergo anionic hydrolysis.Thus salt solution contains OH- ions. Hence aqueous solution of sodium carbonate is basic in nature.

Answer 2

Sodium chloride is a neutral salt of strong acid HCI and strong base NaOH, whereas sodium carbonate is a basic salt of weak acid H2CO3 and strong base NaOH.

About salts:

• In chemistry, salt is a material formed by the interaction of an acid and a base.
• Salt is made up of a base's positive ion (cation) and an acid's negative ion (anion).
• A neutralization reaction occurs when an acid and a base react.
• Salt is a chemical molecule in chemistry that consists of an ionic assembly of positively charged cations and negatively charged anions, resulting in a substance with no net electric charge.
• Table salt is a prominent example, containing positively charged sodium ions and negatively charged chloride ions.

Different types of salts:

• Simple salts
• Acidic salts
• Basic salts
• Neutral salts
• Double salts
• Complex salts
• Mixed salts

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