Question

Question 11 (1 point)

The molecular formula for heptane is

Question 11 options:

	C7H12
	C6H14
	C7H18
	C7H16

Question 12 (1 point)

The nonpolar nature of hydrocarbons accounts for which of the following physical properties?

Question 12 options:

	low melting point
	low boiling point
	low solubility in water
	all of the above

Question 13 (1 point)

When hydrocarbons react with oxygen to produce carbon dioxide and water the reaction is called

Question 13 options:

	combustion
	reforming
	cracking
	distillation

Question 14 (1 point)

Alkanes will NOT undergo which of the following reactions?

Question 14 options:

	cracking
	addition
	reforming
	combustion

Question 15 (1 point)

What is the smallest member of the alkene family?

Question 15 options:

	methene
	ethene
	propene
	butene

Question 16 (1 point)

What is the appropriate name for the structure shown?

Question 16 options:

	1-butene
	3-butene
	2-butene
	4-butyne

Question 17 (1 point)

The number of known compounds of carbon far exceeds the number of compounds of all other elements combined because

Question 17 options:

	the carbon atom is small and can form four bonds
	carbon atoms have the special ability to to bond together to form chains, rings, spheres and sheets of almost any size
	carbon can form multiple combinations of single, double, and triple bonds with itself and with other elements
	all of the above

Question 18 (1 point)

Which of the following classes of organic compounds does not contain oxygen?

Question 18 options:

	amides
	aldehydes
	ethers
	amines

Question 19 (1 point)

The functional group of a molecule does not affect a compound's

Question 19 options:

	reaction with other molecules
	melting point
	carbon chain length
	solubility

Question 20 (1 point)

Which is most likely to be a gas at room temperature?

Question 20 options:

	propane
	propanol
	propanoic acid
	propanal

Question 21 (1 point)

What physical property allows for distillation?

Question 21 options:

	melting point
	boiling point
	conductivity
	all of the above

Question 22 (1 point)

What is the correct name of the compound shown?

Question 22 options:

	propanal
	propanone
	propanol
	methyl ethanoate

Question 23 (1 point)

Why does hydrogen bonding occur?

Question 23 options:

	a hydrogen atom is bonded to a highly electronegative atom
	a hydrogen atom has a partial positive charge
	a hydrogen atom is attracted to a partial negative charge of a highly electronegative atom in another molecule
	all of the above

Question 24 (1 point)

Which of the following statements is NOT a property of an aldehyde?

Question 24 options:

	it contains oxygen
	it can form esters
	it is soluble in water
	none of the above

Question 25 (1 point)

The name for the molecular structure shown is

CH₃CH₂OH

Question 25 options:

	1-methanol
	ethanol
	ethanal
	2-ethanol

Question 26 (1 point)

To which group of organic molecules does cholesterol belong?

Question 26 options:

	alcohols
	aldehydes
	carboxylic acids
	ketones

Question 27 (1 point)

The structural formula for methyl ethanoate is

Question 27 options:

Question 28 (1 point)

Saved

Substances whose molecules are made up of many similar smaller molecules linked together in long chains are called

Question 28 options:

	monomers
	isomers
	long chain alkanes
	polymers

Question 29 (1 point)

Esters are

Question 29 options:

	often fragrant
	essential oils in fruits and flowers
	found in some types of flavouring
	all of the above

Question 30 (1 point)

Which of the following is a sensible precaution when working with organic solvents?

Question 30 options:

	store the container below ground
	keep away from open flames
	work in an enclosed space
	breathe deeply

Answer 1