Pre Test on Organic Compounds

Which of the following elements is not found in organic compounds?

• Carbon

• Hydrogen

• Oxygen

• Nitrogen

• Argon

Which of the following compounds is not a hydrocarbon?

• Methane

• Ethane

• Propene

• Butene

• Water

The formula for saturated hydrocarbons is?

• CnH2n+1

• CnH2n+2

• CnH2n-2

• CnH2n-1

Which of the following compounds are alkenes?

• C3H4 and C4H10

• C3H8 and C4H8

• C3H6

• C3H4 and C3H8

• C3H6 and C4H10

The structural formula CH3 - CH(CH3) - (CH2)2 - CH = CH2 is named?

• 2,3-dimethyl pentene

• 2-methyl hexene

• 3,3,4-trimethyl pentene

• 5-methyl hexene

Which of the following names is incorrect according to IUPAC?

• 2-methyl butane

• 3-methyl butane

• 2-methyl-3-ethylhexane

• 2,2-dimethyl hexane

• 2,2,3,3-tetramethyl hexane

Which of the following is a chain isomer of hexane?

• 2-methyl pentane

• 3-methyl pentane

• 2,3-dimethyl butane

• 2,2-dimethyl butane

• 3,3-dimethyl butane

Cis-3-methylhexene and trans-3-methylhexene are two compounds that are isomers of?

• Position

• Geometric

• Chain

• Optical

• Polymeric

Between octene and 2-octene, what type of isomerism is present?

• Position

• Metamerism

• Chain

• Polymeric

• Functional group

Hydrocarbons can be saturated or unsaturated. What is meant by unsaturated bonds between carbons?

• Single bond

• Single, double, and triple bond

• Single and double bond

• Double or triple bond

• Single and triple bond