IB Chemistry Organic

What is the definition of a hydrocarbon?

• A compound made of hydrogen and carbon only

• A compound that includes hydrogen or carbon

• A mixture that includes hydrogen and carbon

• A mixture of hydrogen and carbon only

What property allows us to separate hydrocarbons during fractional distillation?

• Different hydrocarbons have different boiling points

• Different hydrocarbons have different melting points

• Different hydrocarbons are different colours

• Some hydrocarbons have a positive charge and others have a negative charge

What happens to the boiling point and flammability of hydrocarbons as the length of the molecules increases?

• Longer hydrocarbons have lower boiling points and are less flammable

• Longer hydrocarbons have higher boiling points and are more flammable

• Longer hydrocarbons have lower boiling points and are more flammable

• Longer hydrocarbons have higher boiling points and are less flammable

What is the name of the alkane with two carbon atoms?

• Ethane

• Methane

• Butane

• Propane

the study of the structure, properties, composition, reactions, and preparation of carbon-containing compounds​ ​ (a)  

• Organic chemistry

• Catacoustics

• Abyssal

• Gluon

Tags

NGSS.HS-LS1-6

Which element is found in all organic molecules?

• Oxygen (O)

• Carbon (C)

• Hydrogen (H)

• Nitrogen (N)

Tags

NGSS.HS-LS1-6

Which of the following is an organic compound?

• H₂O

• C₂H₄

• HF

• NaOH

Tags

NGSS.HS-LS1-6

Very long organic molecules that consist of carbon, oxygen, hydrogen, nitrogen, and phosphorus that would be found in nucleus with DNA.

• Nucleic Acid

• Carbohydrate

• Protein

• Lipid

Which is the organic compound?

• silane, SiH₄

• urea, CH₄N₂O

• ammonium sulfide, (NH₄)₂S

• sodium chloride, NaCl

Tags

NGSS.HS-LS1-6

What chemicals are found in crude oil?

• Methane only

• A mixture of compounds, which are mostly hydrocarbons

• A mixture of elements

• Carbon only