Answer

Ariel stem and ethanol form a light yellow color when alkali is added to them. This is because the alkali catalyzes the reaction of the two substances, resulting in a color change.

Reaction Mechanism

When alkali is added to Ariel stem and ethanol, it catalyzes the reaction of the two substances and causes them to form a light yellow color. The alkali acts as a catalyst, facilitating the reaction and increasing the rate of reaction. This reaction is known as an esterification reaction, which involves the reaction of an alcohol (ethanol) with an acid (Ariel stem), and is catalyzed by an alkali base. This reaction produces an ester, which is an organic compound that has the functional group of an ester.

Uses

The reaction of Ariel stem and ethanol with alkali is used for a variety of purposes. One example is in the production of soap, which is produced through a process known as saponification. This involves the reaction of an acid (Ariel stem) and an alkali (alkali) to produce a soap molecule, which is then used to produce the soap product. This reaction is also used in the production of pharmaceuticals and fragrances, as well as for the production of certain food products.

Chemical Properties

The reaction of Ariel stem and ethanol with alkali is an exothermic reaction, meaning it produces heat as a by-product. The reaction is reversible, meaning it can be reversed by the addition of an acid. This reaction also produces an ester, which has the functional group of an ester. The reaction is catalyzed by an alkali base, which acts as a catalyst and increases the rate of reaction.

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