Question 1

Which type of carbon hybridization is present in the molecule acetylene ($$\mathrm{C_2H_2}$$)?

Accepted Answer

sp (linear)

Question 2

How many $$\sigma ($$sigma) and $$\pi (pi) $$bonds are present in a molecule of ethene ($$\mathrm{C_2H_4}$$)?

Accepted Answer

$$5\ \sigma$$ and $$1\ \pi$$

Question 3

Which functional group is present in the compound with the formula $$\mathrm{CH_3COOH}$$?

Accepted Answer

Carboxylic acid

Question 4

What is the correct IUPAC name for the following structure?

$$\mathrm{CH_3$-CH_2$-CH(CH_3$)-CH_2$-CH_3$}$$

Accepted Answer

3-methylpentane

Question 5

Which of the following statements about $$\pi (pi) $$bonds is correct?

Accepted Answer

$$\pi$$ bonds result from lateral overlap of orbitals and are weaker than $$\sigma$$ bonds.

Question 6

A molecule has the formula $$\mathrm{CH_3CH_2OH}. $$Which functional group does it contain?

Accepted Answer

Alcohol

Question 7

Which suffix is used for naming organic compounds with a triple bond according to IUPAC nomenclature?

Accepted Answer

-ino

Question 8

What is the general formula for an ether functional group?

Accepted Answer

$$\mathrm{R-O-R'}$$

Question 9

Which of the following best describes a branched (ramificada) carbon chain?

Accepted Answer

A chain where at least one carbon is bonded to three or four other carbons.

Question 10

How many $$\pi$$ bonds are present in a molecule of buta-1,3-diene ($$\mathrm{CH_2$=CH-CH=CH_2$}$$)?

Accepted Answer

2

Question 11

Which group is responsible for the chemical properties of organic compounds?

Accepted Answer

Functional group

Question 12

What is the hybridization of the central carbon atom in formaldehyde ($$\mathrm{CH_2O}$$)?

Accepted Answer

$$sp^2$$

Question 13

Which of the following compounds is an example of a ketone?

Accepted Answer

$$\mathrm{CH_3COCH_3}$$

Question 14

A molecule contains only single bonds between carbon atoms. What is the hybridization of each carbon?

Accepted Answer

$$sp^3$$

Question 15

Which of the following is the correct order of bond strength from strongest to weakest?

Accepted Answer

$$\sigma \u003e \pi$$

Question 16

What is the correct IUPAC suffix for a compound containing a carboxylic acid group?

Accepted Answer

-anoico

Question 17

Which of the following best describes an aromatic carbon chain?

Accepted Answer

A closed ring with alternating double bonds, such as benzene.

Question 18

How many $$\sigma$$ and $$\pi$$ bonds are present in a molecule of ethyne ($$\mathrm{C_2H_2}$$)?

Accepted Answer

$$3\ \sigma$$ and $$2\ \pi$$

Question 19

Which of the following is a correct example of an amine?

Accepted Answer

$$\mathrm{CH_3NH_2}$$

Question 20

Which of the following best describes the process for naming a branched alkane according to IUPAC rules?

Accepted Answer

Identify the longest carbon chain, number it to give the lowest numbers to substituents, name and locate substituents, and use the appropriate suffix.

Fundamentals of Organic Chemistry: Carbon Compounds

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