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Uses of Boron and Aluminium and their Compounds

subtopiceasy~20 min study8 MCQ

Explores the practical applications and industrial uses of boron, aluminium, and their various compounds.

What is Uses of Boron and Aluminium and their Compounds?

A substance that lowers the melting point of another substance, used in metallurgy to remove impurities.

Key formula / rule: Borax

Key points

  • Identify the major industrial uses of Boron and its compounds.
  • Identify the major industrial uses of Aluminium and its compounds.
  • Differentiate between the applications of Boron and Aluminium based on their properties.

Common exam trap

Confusing the properties and uses of Boron with Aluminium.

Definitions

Term

Flux

Meaning

A substance that lowers the melting point of another substance, used in metallurgy to remove impurities.

Term

Metalloid

Meaning

An element that has properties of both metals and non-metals.

Term

Antiseptic

Meaning

A substance that inhibits the growth of microorganisms.

Term

Refractory

Meaning

A material that is resistant to heat and used in high-temperature applications like furnaces.

Term

Duralumin

Meaning

A specific alloy of aluminium, copper, magnesium, and manganese, known for its high strength and low weight.

Learning objectives

  • Identify the major industrial uses of Boron and its compounds.

  • Identify the major industrial uses of Aluminium and its compounds.

  • Differentiate between the applications of Boron and Aluminium based on their properties.

Formulae

Name

Borax

Note

Sodium tetraborate decahydrate, used in detergents, metallurgy, and glass.

Expression

Na2B4O7·10H2O

Name

Boric Acid

Note

Mild antiseptic and food preservative.

Expression

H3BO3

Name

Aluminium Chloride

Note

Used as a Lewis acid catalyst in organic synthesis.

Expression

AlCl3

Name

Aluminium Oxide

Note

Also known as Alumina, used in abrasives and refractories.

Expression

Al2O3

Prerequisites

  • General properties of Group 13 elements.

  • Chemical properties of Boron and Aluminium.

  • Basic understanding of chemical compounds and their formulas.

Common mistakes

  • Confusing the properties and uses of Boron with Aluminium.

  • Forgetting the specific applications of key compounds like Borax and Alumina.

  • Overlooking the use of Boron in advanced materials like composites.

Keywords

  • Boron

  • Aluminium

  • Borax

  • Boric Acid

  • Alumina

  • Duralumin

  • Metalloid

  • Alloy

  • Flux

  • Antiseptic

  • Refractory

  • Composite materials

Practice preview

  • Which compound of Boron is used as an antiseptic and eyewash?

    easy

  • Aluminium oxide (Al2O3) is amphoteric. Which of the following reactions demonstrates this property?

    medium

  • Aluminium is extracted from alumina (Al2O3) by electrolysis. Which of the following is added to alumina to lower its melting point and increase electrical conductivity?

    medium