Question

Choose the option that depicts the correct increasing order of basic strength.

• A. Sodium hydroxide < Ammonium hydroxide < Water
• B. Water < Ammonium hydroxide < Sodium hydroxide
• C. Ammonium hydroxide < Sodium hydroxide < Water
• D. Ammonium hydroxide < Water < Sodium hydroxide

Answer 1

The correct option is B Water < Ammonium hydroxide < Sodium hydroxide

• The strength of any base is determined by the extent to which it is able to dissociate when dissolved in water.
• Among the given three bases:
• Sodium hydroxide, Ammonium hydroxide and Water, sodium hydroxide is a strong base, while ammonium hydroxide is a weak base and water is neutral.
• Therefore the order of basicity followed is:

Water < Ammonium Hydroxide < Sodium Hydroxide