Question, please help me !! 1) Automobile antifreeze is: A) ethylene glycol. B)

Question

Question, please help me !!

1) Automobile antifreeze is:

A) ethylene glycol. B) ethyl alcohol. C) glycerol. D) isopropyl alcohol.

2) Glycerol is used as a:

A) solvent. B) hydraulic fluid. C) moistening agent. D) fuel additive.

3) The phenol used in some mouthwashes and throat lozenges is:

A) cannabinol. B) cresol. C) hexylresorcinol. D) hexachlorophene.

4) A phenol used as an antioxidant food additive in vegetable oil is:

A) BHT. B) vitamin E. C) thymol. D) THC.

5) The phenol in poison ivy sap that causes the skin on some people to blister is?

A) o-Phenylphenol. B) Safrole. C) Hyoxylresorcinol. D) Urushiol.

6) How can the solubility of alcohols be estimated?

A) by the ratio of hydroxyl groups to carbons. B) by the number of secondary carbons. C) by the number of side chains. D) by the number of alcohol groups.

7) Oxidation of a thiol produces a:

A) disulfide. B) aldehyde. C) ketone. D) salt.

8) An example of a heavy metal ion which reacts with R—SH is:

A) Na. B) Mg+2. C) Na+. D) Pb+2.

10) An infant with fetal alcohol syndrome could exhibit which of the following characteristics? A) a thin upper lip. B) a short nasal bridge. C) mental retardation. D) all of these.

11) Thiols create the unpleasant odor associated with a skunk. Which of the general forms below represents a thiol?

A) R-S2-R.   B) R-SH. C) R-SH2. D) R-S-R.   

PLEASE HELP !!!

Explanation / Answer

1) in general

ethylene glycol is used as a automobile antifreeze

so

option A) ethylene glycol

2)

glycerol is used for all of the given options

so

the answer is option A,B, C, D

3)

hexylresorcinol is used in mouthwashes and throat lozenges

option C)

4)

BHT is used as an antioxidant

option A)

5) D) urushiol

6)

it is determined by the number of side chains

so

option C)

7) it produces a disulfide

the reaction is

R-SH + R-SH + O --> R-S-S-R

so the answer is otpion A) disulfide

8)

lead is the heavy metal that reacts with thiol

so

option D) Pb+2

9)

it is CH3-CH2-CH2-SH

because of the presence of sulphur

so

the answer is option C)

10)

D) all of these

11)

Thiols are R-SH

so

the answer is option B)

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