Laundry Products & Chemistry Quiz

Identify laundry equipment

Identify quality of water

Identify suitable chemicals for laundry.

What is the advantage of soft water?

• Soft water consumes less soap for cleaning clothes.

• Soft water provides vital minerals necessary for the body.

• Soft water is usually less palatable to drink.

• Soft water does not produce crust or deposit any scale.

What are the disadvantages of hard water?

• The use of hard water causes wastage of soap.

• Hard water provides a good taste for drinking.

• Hard water is not suitable for the paper industry.

• Some people complain of dry skin after bathing.

What is thermal disinfection?

• Washing at a temperature of 70C for approximately 25 minutes.

• Using chlorine bleaches to whiten linen.

• Adding alkalis to neutralise soils in linen.

• Using fabric softeners to reduce lint.

What is the purpose of detergents in laundry?

• To wash the linen and allow water to penetrate the soil.

• To whiten linen and remove residual stains.

• To soften towels and reduce lint.

• To neutralise residual alkalis.

What is the effect of using too little detergent?

• Greying of fabrics.

• Color fading.

• Shrinking of fabrics.

• Increased fabric strength.

What is the main function of fabric softeners in laundry?

• To reduce static cling and make fabrics feel softer.

• To remove tough stains from fabrics.

• To enhance the color of the fabrics.

• To disinfect the fabrics during washing.

What can happen if too much detergent is used in laundry?

• Residue buildup on fabrics.

• Improved cleaning efficiency.

• Faster drying times.

• Enhanced fabric durability.