Question

Borax is not used (1) as an antiscptic (2) in making cnamels and pottery glazes (3) as a flux in soldering (4) in making optical glasses

Short answer

Borax is not used in making optical glasses.

Step-by-step solution

Understanding the Use of Borax

Borax, also known as sodium borate, is a mineral and a salt of boric acid. It has various industrial and household uses. It's important to identify the contexts in which borax is commonly used to determine in which scenario it might not be applicable.

Checking Common Uses of Borax

Review the common uses of borax: (1) Borax has antiseptic properties and can be used as an antiseptic. (2) It is commonly used in making enamels and pottery glazes because it can withstand high temperatures. (3) Borax is used as a flux in soldering because it helps prevent oxidation.

Comparing to Given Options

Compare the above uses with the provided options: (1) as an antiseptic, (2) in making enamels and pottery glazes, (3) as a flux in soldering, (4) in making optical glasses. From the comparison, it is evident that borax is used in the first three options, which matches its common uses.

Identifying the Uncommon Use

Since borax is effectively used in antiseptics, enamels and glazes, and as a flux in soldering, the remaining option is the one where borax is not commonly used. Therefore, the use that does not fit is: (4) in making optical glasses.

Key concepts

industrial uses of chemicals

Chemicals play a vital role in various industries. They are used in manufacturing, construction, electronics, and more.
In manufacturing, chemicals act as catalysts, reactants, or raw materials.
For example, borax, a common industrial chemical, is used in several processes. In construction, chemicals improve the durability and strength of materials.
Chemicals also help in pest control and water treatment. Hence, the industrial applications of chemicals are immense and diverse.

chemistry in everyday life

We encounter chemistry every day, often without realizing it.
From the food we eat to the cleaning products we use, chemistry is everywhere.
Borax is a great example of this. It is used in household cleaning products, laundry detergents, and even as an insecticide.
Its antiseptic and preservative properties help in maintaining hygiene. So, chemistry significantly influences our daily life routines and overall well-being.

properties of borax

Borax, known scientifically as sodium borate, has several important properties.
It is a white, crystalline powder that is soluble in water.
Borax has antiseptic, antifungal, and antibacterial properties.
It also has a high melting point, which makes it useful in high-temperature processes.
Additionally, it can act as a buffer, maintaining a stable pH level in solutions. These properties contribute to its diverse applications in both household and industrial contexts.

chemical applications in industry

Chemicals have a wide range of applications in different industries.
In the electronics industry, chemicals are used to etch circuits and clean silicon wafers.
The pharmaceutical industry depends heavily on chemicals for drug formulation and synthesis.
The food industry uses chemicals as preservatives, flavor enhancers, and stabilizers.
In the context of borax, it's utilized extensively in making enamels, pottery glazes, and as a flux in soldering processes, illustrating its versatility and efficiency in industrial applications.