Which compound can act as both Lewis acid and Lewis base?

SO2 acts as a Lewis acid as well as Lewis base.

What can be both Lewis acid and base?

Some compounds, such as H2O, are both Lewis acids and Lewis bases, because they can either accept a pair of electrons or donate a pair of electrons, depending upon the reaction. Lewis acids are diverse. Simplest are those that react directly with the Lewis base.

Is SO2 base or acid?

Sulfur dioxide is one of the few common acidic yet reducing gases. It turns moist litmus pink (being acidic), then white (due to its bleaching effect).

Why co2 and SO2 are Lewis acids?

Acids and Bases: Lewis Theory This positive center is able to attract (and accept) the lone electron pairs present on the oxide ion (O2-). Thus, carbon dioxide is acting as a Lewis acid and the oxide ion is acting as a Lewis base. (CH3)3N has a lone pair of electrons on the nitrogen.

How can a compound be both an acid and a base?

Explanation: A substance is amphoteric (from Greek amphoteros = “each of two”) if it can act as an acid or a base. For example, aluminum hydroxide is amphoteric because it can act as a base and neutralize strong acids.

Which of the following compounds acts as both an acid and a base?

These compounds, such as Al2O3 and Al(OH)3, are called amphoteric (literally, “either or both”) because they can act as either acids or bases.

Which of the following acts both Bronsted and Lewis acid?

A substance which can donate H+ acts as bronsted acid. A substance which accepts electron pair is Lewis acid. NH4+ can donate H+ as well as accepts an electron pair due to presence of vacant orbital. So, NH4+ can act as both bronsted and Lewis acid.

What is SO2 base?

Sulfite ion is a weak base, but does undergo some hydrolysis to produce basic solutions. In acidic solution, the equilibria are shifted to form sulfurous acid, resulting in the evolution of SO2 gas. Sulfur dioxide is a colorless gas with a characteristic choking odor. SO2−3(aq)+H2O(l)−⇀↽−HSO−3(aq)+OH−(aq)

Is PH3 a Lewis acid or base?

NH3, PH3, and AsH3 were used as Lewis bases, and BH3 and AlH3 were used as Lewis acids.

Which of the following behaves both as acid and as base?

Which of the following can act as both an acid and a base?

The correct answer is (d). An amphoteric molecule is defined as one that can act as both an acid and a base.

Is hydrazine a Lewis acid or base?

Hydrazine is a highly reactive base and reducing agent used in many industrial and medical applications.

What makes something a Lewis acid or a Lewis base?

In the Lewis theory of acid-base reactions, bases donate pairs of electrons and acids accept pairs of electrons. A Lewis acid is therefore any substance, such as the H+ ion, that can accept a pair of nonbonding electrons. In other words, a Lewis acid is an electron-pair acceptor.

How do you identify Lewis acids and bases?

A lewis acid is a substance that accepts a pair of electrons to form a covalent bond. A base acid is when a substance donates a pair of electrons to form a covalent bond. Therefore, a lewis acid-base reaction is represented by a pair of electrons from a base to an acid.

Is SO2 acidic or basic?

Compare their reaction with a single reagent, water. SO2 + H2O yields H2SO3. The lone pair on the water oxygen attacks sulfur, forming an O-S bond. Thus H2O acts as the lewis base and SO2 as the lewis acid.