Organic Chemistry

Which of the following is a cyclic hydrocarbon?

• Butane

• Cyclobutane

• Propane

• propene

In cyclic hydrocarbons, each carbon atom is surrounded by ________- covalent bonds ?

• 1

• 2

• 3

• 4

Benzene ring has the chemical formula ___________-.

• C₆H₆

• C₆H₁₂

• C₆H₁₄

• C₇H₇

Benzene ring contains _____________.

• three single bonds only

• three double bonds only

• three single bonds and three double bonds.

• six single bonds only

Which compound below is aromatic?

• 
• 
• 
• 

As the number of carbon atoms in a formula ________, the number of possible isomers _________.

• increases, decreases

• increases, increases

• decreases, increases

Hydrocarbons with only single covalent bonds are known as?

• Alkanes

• Alkenes

• Alkynes

An alkene is a hydrocarbon with

• all single bonds betwee carbon atoms

• one triple bond between 2 carbon atoms

• at least one double bond between 2 carbon atoms

Cyclohexane is the simplest stype of cyclic hydrocarbon and contains only

• triple bonds

• double bonds

• single bonds

The most well-known ring structure that possesses double bonds is _____

• benzene

• hexane

• methane