Alkenes and Alkynes

Water does add to C=C double bonds to give alcohols in the presence of an acid. This type of reaction is called ______________________.

• Catalytic hydrogenation

• Hydration

• Halogenation

• None of these

It describes how a reaction takes place: which bonds break and in what order.

• Reaction mechanism

• Chemical reaction

It states that, in the addition of HX, the hydrogen goes to the carbon that already has more hydrogen.

• Markovnikov's rule

• Octet rule

These are unsaturated hydrocarbons with one or more double bonds.

• Alkanes

• Alkenes

• Alkynes

• None of these

The general formula for alkenes.

• C_nH_2n

• C_nH_2n-2

• C_nH_2n+2

• C_nH_2n-6

The first member of the alkene family.

• Ethane

• Ethene

• Ethyne

• Propylene

The common name for ethene.

• Ethyl

• Acetylene

• Ethylene

• Propylene

These are molecules having the same structural formula but differ in position in the molecules geometric structure with respect to the C=C.

• Geometric isomer

• Positional isomer

• Stereoisomer

• None of these

This isomer means that two particular atoms (or group of atoms) are adjacent to each other.

• cis-

• trans-

• meta-

• ortho-

This isomer means that two particular atoms (or group of atoms) are across from each other.

• cis-

• trans-

• meta-

• ortho-