Question

Which of the following substances is used for loading?

• A. Alum
• B. Chlorine
• C. Fluorine
• D. Oil

Answer 1

The correct option is A

Alum

Loading is a process in which chemical substances like alum are added to the liquid to help the suspended particles of liquid to form sediment of solid. The suspended particles are lighter and do not settle at the bottom, to make these suspended particles heavier and settle down, the loading process is used.

The explanation for the correct option:

• Alum is a substance that is used for the process of loading.
• This type of alum can be found in the grocery store. Its chemical formula is $\mathrm{KAl}{\left({\mathrm{SO}}_4\right)}_2.12{\mathrm{H}}_2\mathrm{O}$.

The explanation for the incorrect option:

• Chlorine: It is used in cleaning the water that is supplied to our homes and the process is called chlorination.
• Fluorine: Fluorinated cleaning solvents are high-performance chemicals used for cleaning dirt, oil, fingerprints, and other contaminants.
• Oils: The essential oils are helpful in breaking down grease, and eliminating dirt, mineral deposits, and stains, especially in the citrus family of orange and lemon. For Example - Pine oil, Eucalyptus oil.

Hence, option (A) is the correct option.