Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) Natural gas and petroleum constitute the largest and most important sources of both alkanes and cycloalkanes.
(2) The number of hydrogen atoms present in an alkane is always twice the number of carbon atoms plus two more.
(3) Unbranched alkane boiling points decrease as carbon chain-length increases.

Question

Quizplus · Accepted Answer

Statement 1 is false because cycloalkanes can also be obtained from other sources such as biomass or synthesized using non-petroleum methods. Statement 2 is true as it follows the general formula for alkane - CnH2n+2. Statement 3 is false as boiling points of unbranched alkanes increase with an increase in carbon chain-length due to an increase in intermolecular forces.

Characterize EACH of the Three Given Statements as Being TRUE