Question

1.)

What is the name of a proton acceptor in a reaction?

Bronsted-Lowry acid

Arrhenius acid

Lewis base

Bronsted-Lowry base

Arrhenius base 2.) What is the name given to a substance that can act as a Brønsted acid or as a Brønsted base according to with what it is reacting? isoprotic isoelectronic hydrophobic amphoteric hydrophilic 3.) Which of the following is the most acidic: HBrO3, HFO3, HIO3, and HClO3? HBrO3 HClO3 HFO3 HIO3

Answer 1

According to Bronsted-Lowry definition, a proton donor is an acid and a proton acceptor is a base. Hence, the name of a proton acceptor in a reaction is Bronsted-Lowry base. A compound that acts as both a Bronsted-Lowry acid and base together is called amphoteric Hence, the name given to a substance that can act as a Bronsted acid or as a Bronsted base according to with what it is reacting is amphoteric The acidity of a molecule depends on the electronegativity of the central atom. The greater the electronegativity of the central atom (F, Cl, Br, I), the stronger the acid. As the electronegativity of F is greatest therefore, most acidic molecule is HF