Question 1

Which of the following statements best explains why higher alkanes (C5–C10) have higher boiling points than lower alkanes (C1–C4)?

Accepted Answer

They have stronger van der Waals forces due to increased molecular size.

Question 2

Which functional group is present in all alcohols, and what property does it impart to the molecule?

Accepted Answer

Hydroxyl group; enables hydrogen bonding

Question 3

Methanol ($$CH_3OH) $$and ethanol ($$CH_3CH_2OH) $$are both alcohols. Which statement correctly compares their solubility in water?

Accepted Answer

Both are highly soluble, but methanol is more soluble due to its smaller, more polar structure.

Question 4

Which of the following compounds is a secondary alcohol?

Accepted Answer

Propan-2-ol ($$CH_3CHOHCH_3)$$

Question 5

Which statement best describes the difference between an aldehyde and a ketone?

Accepted Answer

Aldehydes have a carbonyl group attached to a primary carbon, while ketones have it attached to a secondary carbon.

Question 6

Which of the following molecules is most likely to be hydrophobic?

Accepted Answer

Hexane ($$C_6H_{14})$$

Question 7

Which general formula represents alkanes?

Accepted Answer

$$C_nH_{2n+2}$$

Question 8

Cyclopropane is much more reactive than cyclohexane. What is the main reason for this difference?

Accepted Answer

Cyclopropane has significant ring strain due to its small ring size.

Question 9

Which of the following is the correct structure for 1,3-butadiene?

Accepted Answer

$$CH_2=CH-CH$$=$$CH_2$$

Question 10

Which hybridization is found in the carbon atoms of ethyne ($$C_2H_2$$)?

Accepted Answer

$$sp$$

Question 11

Which of the following statements about ethers is correct?

Accepted Answer

Ethers have the general formula $$C_nH_{2n+1}-O-C_mH_{2m+1}$$ and are typically less polar than alcohols.

Question 12

Which compound is an isomer of cyclohexene?

Accepted Answer

Hex-1-ene ($$CH_2=CH$$-$$CH_2$$-$$CH_2$$-$$CH_2$$-$$CH_3)$$

Question 13

Which functional group is present in acetic acid ($$CH_3COOH$$)?

Accepted Answer

Carboxyl group ($$-COOH)$$

Question 14

Which of the following statements about benzene is correct?

Accepted Answer

Benzene contains three double bonds in a six-membered ring and is aromatic.

Question 15

Which molecule would be expected to have the highest viscosity due to hydrogen bonding?

Accepted Answer

Propan-1,2,3-triol (glycerol)

Question 16

Which of the following is a correct description of a primary amine?

Accepted Answer

A compound with an $$-NH_2$ group attached to a primary carbon.

Question 17

Which of the following statements about saturated and unsaturated fatty acids is correct?

Accepted Answer

Saturated fatty acids contain only single bonds between carbon atoms.

Question 18

Which of the following compounds is most likely to form hydrogen bonds with water?

Accepted Answer

Methanol ($$CH_3OH)$$

Question 19

Which of the following is the correct formula for an ether?

Accepted Answer

$$CH_3-O$$-$$CH_3$$

Question 20

A patient is exposed to ether during surgery. Which property of ether makes it suitable as an anesthetic?

Accepted Answer

It is volatile and can be easily inhaled, producing rapid anesthesia.

Naamgeving en Basiskennis Organische Verbindingen (General Chemistry: Organic & Polymer Chemistry)

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