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) A minimum of four carbon atoms is required in a cycloalkane.
(2) The molecules 2,4-dimethylpentane and 2,4-dimethylhexane are constitutional isomers.
(3) As a result of rotation about single bonds, all alkane molecules, except methane, can exist in an infinite number of conformations.

Question

Quizplus · Accepted Answer

- Statement 1 is false because a cycloalkane can have a minimum of three carbon atoms, as in cyclopropane.- Statement 2 is false because 2,4-dimethylpentane and 2,4-dimethylhexane cannot be constitutional isomers as they have different numbers of carbon atoms in their longest chain (5 and 6, respectively).- Statement 3 is true because all alkanes except methane, which has no carbon-carbon single bonds to rotate around, can indeed exist in an infinite number of conformations due to rotation around their single bonds.

Characterize EACH of the Three Given Statements as Being TRUE