Question 1

Which of the following species possesses a formal charge?

Accepted Answer

AlCl$$_4^-$$

Question 2

Which of the following compounds is a carboxylic acid?

Accepted Answer

CH$$_3CH$_2CH$_2$$COOH

Question 3

Which of the following is a tertiary alcohol?

Accepted Answer

(CH$$_3$$)$$_3$$COH

Question 4

Which of the following molecules has a molecular dipole moment?

Accepted Answer

NH$$_3$$

Question 5

Rank the following in order of decreasing importance as a contributing resonance structure to the molecular structure of acetone, CH$$_3$$COCH$$_3 ($$more important $$\u003e$$ less important):

1: Neutral structure with all atoms having full octets
2: Structure with a positive charge on oxygen
3: Structure with a positive charge on carbon

Which is correct?

Accepted Answer

1 $$\u003e 2$$ $$\u003e 3$$

Question 6

Which of the following is the strongest acid?

Accepted Answer

CH$$_3SH$$

Question 7

Which sets of curved arrows accounts for the protonation of propene with HI?

Accepted Answer

1

Question 8

Which species is the conjugate acid in the following acid-base reaction?

(Refer to the image provided in the study materials.)

Accepted Answer

3

Question 9

Which of the following is a Lewis acid but not a Brønsted-Lowry acid?

Accepted Answer

BCl$$_3$$

Question 10

Which of the following is a definition of the rate-determining step of a reaction mechanism?

Accepted Answer

the step that crosses the highest energy barrier

Question 11

Which of the following functional groups is present in aspirin (acetylsalicylic acid)?

Accepted Answer

Carboxylic acid

Question 12

Which of the following molecules is nonpolar?

Accepted Answer

CO$$_2$$

Question 13

Which of the following is a nucleophile in an SN2 reaction?

Accepted Answer

Br$$^-$$

Question 14

Which of the following best describes the role of H$$_2SO$_4 in $$the dehydration of alcohols?

Accepted Answer

Brønsted-Lowry acid

Question 15

Which of the following statements about resonance structures is correct?

Accepted Answer

The actual molecule is a hybrid of all resonance structures.

Question 16

Which of the following is the best description of a Brønsted-Lowry base?

Accepted Answer

A proton acceptor

Question 17

Which of the following is the correct order of increasing acidity?

CH$$_4$$, NH$$_3$$, H$$_2O$$, HF

Accepted Answer

CH$$_4$$ \u003c NH$$_3$$ \u003c H$$_2O$$ \u003c HF

Question 18

Which of the following is a real-life application of nucleophilic substitution reactions?

Accepted Answer

Formation of soap from fats and NaOH

Question 19

Which of the following best explains why BCl$$_3 is a $$Lewis acid?

Accepted Answer

It can accept an electron pair.

Organic Chemistry Exam 1 Review – Step-by-Step Guidance

Guida di studio - Domande di pratica

Study guide - Flashcard