Question 1

In cleaning, soap acts as a(n)  ________ between "dirt" and water.

Accepted Answer

A)   catalyst
B)   chemical reactant
C)   emulsifier
D)   insulatorE) B) and D)
F) None of the above

Question 2

The red-brown pigment in hair is called

Accepted Answer

A)   melanin.
B)   phaeomelanin.
C)   chlorophyll.
D)   β-carotene.E) A) and B)
F) B) and C)

Question 3

Which water softener "ties up" calcium ions and keeps them in solution?

Accepted Answer

A)   sodium carbonate
B)   sodium phosphate
C)   fatty acids
D)   zeolitesE) None of the above
F) C) and D)

Question 4

All of the following are used as binders for paint EXCEPT

Accepted Answer

A)   acrylic resins.
B)   linseed oil.
C)   polyvinyl acetate.
D)   All of the above are binders.E) B) and C)
F) A) and D)

Question 5

The abrasive in commercial powdered cleansers is often

Accepted Answer

A)   sodium carbonate.
B)   baking powder.
C)   charcoal.
D)   gold metal.E) B) and C)
F) A) and D)

Question 6

Soap can be made by boiling animal fat with lye or potash for several hours. What is the major disadvantage to the lye soap made this way?

Accepted Answer

A)   It did not clean well.
B)   It often contained unreacted alkali, which was very harsh on the skin.
C)   Glycerol separated out from the soap and remained on the bottom of the kettle.
D)   It did not kill bacteria.E) A) and D)
F) B) and C)

Question 7

Water softeners

Accepted Answer

A)   remove "hard" ions.
B)   destroy "hard" ions.
C)   modify "hard" ions.
D)   Water softeners do all of the above.E) None of the above
F) All of the above

Question 8

One of the major problems with the use of household chemicals is

Accepted Answer

A)   they are toxic.
B)   consumers often fail to read directions and warnings.
C)   they do not perform well.
D)   all of the aboveE) C) and D)
F) B) and C)

Question 9

Washing soda is

Accepted Answer

A)   sodium peroxide.
B)   sodium carbonate.
C)   sodium borate.
D)   sodium chloride.E) B) and C)
F) A) and B)

Question 10

The ideal moisture content of skin is approximately

Accepted Answer

A)   3%.
B)   10%.
C)   16%.
D)   75%.E) None of the above
F) All of the above

Question 11

The active ingredient in chlorine laundry bleaches is

Accepted Answer

A)   chlorine, Cl2.
B)   sodium hypochlorite, NaOCl.
C)   sodium chloride, NaCl.
D)   a mixture of CFCs.E) None of the above
F) A) and D)

Question 12

Which of the following is a hazard of using organic solvents in the home? Organic solvents are

Accepted Answer

A)   flammable.
B)   toxic.
C)   volatile.
D)   All of the above are hazards.E) A) and D)
F) All of the above

Question 13

Detergents and abrasives are the major active ingredients in

Accepted Answer

A)   colognes.
B)   shampoos.
C)   skin creams.
D)   toothpastes.E) None of the above
F) A) and B)

Question 14

Which of the following is NOT an advantage of soap? Soap is

Accepted Answer

A)   biodegradable.
B)   derived from renewable resources.
C)   an excellent cleaner in hard water.
D)   relatively nontoxic.E) A) and B)
F) All of the above

Question 15

The layer of skin whose moisture content determines whether our skin feels moist and soft or dry and flaky is the

Accepted Answer

A)   apocrine.
B)   dermis.
C)   epidermis.
D)   eccrine.E) A) and D)
F) B) and D)

Question 16

Optical brighteners are often added to

Accepted Answer

A)   detergents.
B)   soaps.
C)   cosmetics.
D)   They are added to all of the above.E) A) and B)
F) A) and C)

Question 17

What is the difference between a skin cream and a skin lotion?

Accepted Answer

Skin cream and skin lotion are both type...

Question 18

The fraction of compounds in a perfume that have the highest volatility would be called the

Accepted Answer

A)   end note.
B)   middle note.
C)   base note.
D)   top note.E) B) and C)
F) A) and C)

Question 19

Which of the following statements is NOT true for fabric softeners?

Accepted Answer

A)   They are anionic surfactants.
B)   They are quaternary salts.
C)   They form a film which lubricates the fibers in the fabric.
D)   They have two long hydrocarbon chains.E) A) and C)
F) All of the above

Question 20

Colognes are about ________% as strong as perfumes.

Accepted Answer

A)   1
B)   5
C)   50
D)   10E) A) and B)
F) A) and C)

Exam 21: Household Chemicals

Water softeners

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Which of the following statements is NOT true for fabric softeners?

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The fraction of compounds in a perfume that have the highest volatility would be called the

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Detergents and abrasives are the major active ingredients in

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Which of the following is NOT an advantage of soap? Soap is

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The active ingredient in chlorine laundry bleaches is

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One of the major problems with the use of household chemicals is

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What is the difference between a skin cream and a skin lotion?

Correct AnswerAnswered by ExamLex AISkin cream and skin lotion are both type...View AnswerShow Answer

The abrasive in commercial powdered cleansers is often

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The red-brown pigment in hair is called

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Optical brighteners are often added to

Correct AnswerverifiedShow Answer

In cleaning, soap acts as a(n) ________ between "dirt" and water.

Correct AnswerverifiedShow Answer

Which of the following is a hazard of using organic solvents in the home? Organic solvents are

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Colognes are about ________% as strong as perfumes.

Correct AnswerverifiedShow Answer

Washing soda is

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The ideal moisture content of skin is approximately

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Soap can be made by boiling animal fat with lye or potash for several hours. What is the major disadvantage to the lye soap made this way?

Correct AnswerverifiedShow Answer

The layer of skin whose moisture content determines whether our skin feels moist and soft or dry and flaky is the

Correct AnswerverifiedShow Answer

All of the following are used as binders for paint EXCEPT

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Which water softener "ties up" calcium ions and keeps them in solution?

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Answered by ExamLex AI
Skin cream and skin lotion are both type...
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