Table of Contents
Is ammonia a strong base or weak base?
Ammonia is a typical weak base. Ammonia itself obviously doesn’t contain hydroxide ions, but it reacts with water to produce ammonium ions and hydroxide ions.
Is ammonia a stronger reducing agent?
Answer: (a)Ammonia is the weakest reducing agent and the strongest base among Group 15 hydrides. The reducing character of hydrides increases down the group due to decrease in bond dissociation enthalpy.
Why is ammonia weakly basic?
Ammonia is a weak base because its nitrogen atom has an electron pair that readily accepts a proton. Also, when dissolved in water, ammonia acquires hydrogen ions from water to produce hydroxide and ammonium ions. It is the production of these hydroxide ions that imparts ammonia its characteristic basicity.
What makes a weak reducing agent?
Reducing agents can be ranked by increasing strength by ranking their reduction potentials. The reducing agent is stronger when it has a more negative reduction potential and weaker when it has a more positive reduction potential.
How does ammonia act as a base?
In the reaction of ammonia with water to give ammonium ions and hydroxide ions, ammonia acts as a base by accepting a proton from a water molecule, which in this case means that water is acting as an acid.
Is ammonia the weakest reducing agent?
Answer is (a) Ammonia is the weakest reducing agent and the strongest base among Group 15 hydrides. The reducing character of hydrides increases down the group due to decrease in bond dissociation enthalpy.
Is ammonia a strong oxidizing agent?
In ammonia, there is ‘lone pair of electrons’ to be donated or oxidized. The entity which accepts the pair of electrons will get reduced. So, Ammonia is the “reducing agent” and strong oxidizing agents do not exist in liquid ammonia.
Why is ammonia a mild reducing agent?
From N to Bi the size of atom increases and tendency to form covalent bonds with H decreases. As a result their tendency to liberate hydrogen increases for hydrides down the group. Hence NH3 is a mild reducing agent while BiH3 is a very strong reducing agent.
How does ammonia behave as base in water?
Ammonia is a weak base and takes a hydrogen ion from a water molecule to produce ammonium ions and hydroxide ions. However, the ammonia is only a weak base, and doesn’t hang on to the hydrogen ion very successfully.
What makes a weak base?
A weak base is a compound that is partially dissociated into its hydroxyl ion and the cation creating an equilibrium condition. This is called a weak base because it cannot completely dissociate into its cation and the hydroxyl anion.
Is ammonia a strong acid or a strong base?
Ammonia, a gaseous compound of one nitrogen atom bound to three hydrogen atoms, is not a strong base. It is a weaker base that generally must react with water before it reacts with an acid. Before it neutralizes acids in a solution, it reacts with water to form ammonium and hydroxide ions.
Is water a weaker or stronger base than ammonia?
Because ammonia is a stronger base than water. Remember that the concepts of a acid and bases are relative: nitric acid in a concentrated solution of H2SO4 acts as a BASE, because sulphuric acid is stronger.
Is ammonia a strong base?
Ammonia is a strong base compound. Aqueous solutions of all Group 1 hydroxides are strong bases. Ammonia is a weak base because its nitrogen atom has an electron pair that readily accepts a proton. Although ammonia is well known as a weak base it can also act as an extremely weak acid.