Question

Two acids ‘A’ and ‘B’ were kept in beakers. Acid ‘A’ undergoes partial dissociation in
water, whereas acid ‘B’ undergoes complete dissociation in water.
i) Of the two acids ‘A’ and ‘B’ , which is weak acid and which is strong acid?
ii) What is a weak acid?
iii) What is a strong acid?
iv) Give one example each.

Answer 1

i) Acid A is a weak acid as it undergoes partial dissociation. Acid B is strong acid as it undergoes complete dissociation.

ii) A strong acid is one that conducts full ionization of the elements in the solution. These types of acids offer maximum hydrogen ions or protons when put into a solution.

iii) A weak acid is one that disintegrates incompletely. It releases some of its hydrogen atoms into the solution.

Therefore it has a lesser capability to donate protons as compared to a strong acid.

These acids contain higher pKa content that helps in the release of their hydrogen atoms when they get dissolved in water.

iv) Example of strong acid is Sulphuric Acid H2SO4.

    Example of weak acid is Acetic Acid CH3COOH.

Answer 2

I hope this helps you....