chem exam questions

1-Methylcyclohexene reacts with HBr to form two structural isomers.

The major product is 1-bromo-1-methylcyclohexane.

Name and outline the mechanism for the formation of this major product.

alkene → halogenoalkane

Test for aldehyde

tollens reagent

silver mirror

state the meaning of the term fraction

mixture of compounds with similar boiling points

state what is meant by the term carbon neutral

no net emissions of carbon dioxide to the atmosphere

give one reason why carbon dioxide absorbs infrared radiation

C=O bonds are polar

state how figure 1 shows that the rate of reaction of 1-iodobutane is faster than the rate of reaction of 1-bromobutane

gradient of the line is steeper, because the C-I bond is weaker than the C-Br bond so breaks more easily