Which of the following groups is likely to form a homogeneous solution?

cooking oil, gasoline, paraffin

General Properties Of Organic Compounds

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| By Khuongmai

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Quizzes Created: 1 | Total Attempts: 1,281

Questions: 7 | Attempts: 1,281 | Updated: Mar 22, 2023

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General Properties Of Organic Compounds - Quiz

This quiz is intended for testing the students' knowledge on the general properties of organic compounds such as polarity, solubility, boiling points, combustibility, stability, compatibility, acidity, and basicity. Please view the video before taking the quiz.

Questions and Answers

1.

Which of the following compounds is an alcohol?
- A.
  
  MeC(O)Me
- B.
  
  MeC(O)OH
- C.
  
  MeOH
- D.
  
  NaOH
- E.
  
  EtOMe
Correct Answer
C. MeOH

Explanation
MeOH is the correct answer because it is the only compound in the given options that contains the hydroxyl functional group (-OH), which is characteristic of alcohols. MeC(O)Me is a ketone, MeC(O)OH is a carboxylic acid, NaOH is a strong base, and EtOMe is an ether.

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2.

Which of the following compounds is readily to dissolve in water?
- A.
  
  Pentane
- B.
  
  Pentanol
- C.
  
  Pentanoic acid
- D.
  
  Sodium pentanoate
- E.
  
  Penthouse
Correct Answer
D. Sodium pentanoate

Explanation
d is very soluble because it's a salt. b and c are slightly soluble.

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1
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3.

Which of the following pairs has the highest and lowest boiling points (in any order)?
- A.
  
  Water & NaOH
- B.
  
  NaOH & MeOH
- C.
  
  MeOH & Water
- D.
  
  Water & EtOH
- E.
  
  EtOH & MeOH
Correct Answer
B. NaOH & MeOH

Explanation
NaOH is a solid and has the highest BP. MeOH has the lowest BP. Water has a higher BP than all three alcohols.

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4.

Which of the following compounds is likely to have the lowest flash point?
- A.
  
  Gasoline
- B.
  
  Cooking oil
- C.
  
  Pentane
- D.
  
  Rubbing alcohol
- E.
  
  Carbon dioxide
Correct Answer
C. Pentane

Explanation
Gasoline (C8-C12) is extremely flammable; but pentane has an even lower BP, and thus the FP. Carbon dioxide is a gas but not flammable.

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5.

Which of the following groups is likely to form a homogeneous solution?
- A.
  
  Water, salt, baby oil
- B.
  
  Water, ethanol, gasoline
- C.
  
  Ethanol, gasoline, NaOH
- D.
  
  Cooking oil, gasoline, paraffin
- E.
  
  None of the above
Correct Answer
D. Cooking oil, gasoline, paraffin

Explanation
All the three components in Group D are hydrocarbons and thus miscible.

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6.

Choose the correct sequence of the following compounds in the order of decreasing acidity.(a) water(b) propanoic acid(c) propylamine(d) HCl
- A.
  
  A > b > c > d
- B.
  
  D > c > b > a
- C.
  
  D > b > a > c
- D.
  
  D > b > c > a
- E.
  
  None of the above is correct
Correct Answer
C. D > b > a > c

Explanation
HCl is of course the strongest acid. Water is neutral, but more "acidic" than the propylamine base.

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7.

In general organic compounds are componds that contain carbon; however there are many exceptions. Which of the following compounds is most likely an organic compound?
- A.
  
  Sodium carbonate
- B.
  
  Lithium Cyanide
- C.
  
  Carbon Monoxide
- D.
  
  Carbonic acid
- E.
  
  Plastic
Correct Answer
E. Plastic

Explanation
Plastic usually contain 70-98% of carbon.

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Current Version
Mar 22, 2023

Quiz Edited by
ProProfs Editorial Team
Jun 24, 2009

Quiz Created by
Khuongmai

General Properties Of Organic Compounds

Which of the following compounds is an alcohol?

Which of the following compounds is readily to dissolve in water?

Which of the following pairs has the highest and lowest boiling points (in any order)?

Which of the following compounds is likely to have the lowest flash point?

Which of the following groups is likely to form a homogeneous solution?

Choose the correct sequence of the following compounds in the order of decreasing acidity.(a) water(b) propanoic acid(c) propylamine(d) HCl

In general organic compounds are componds that contain carbon; however there are many exceptions. Which of the following compounds is most likely an organic compound?