CWU90. Which of the following statements are not correct for alkanes1) all C-H and C-C bonds have a length of 1.112A and 1.54A respectively2) all bond angles are tetrahedral having a value of 1090283) the C-C chain is linear and not Zig-Zag 4) all alkanes exhibit isomerism

CWU90. Which of the following statements are not correct for alkanes1)

1.	CWU90. Which of the following statements are not correct for alkanes1) all C-H and C-C bonds have a length of 1.112A and 1.54A respectively2) all bond angles are tetrahedral having a value of 1090283) the C-C chain is linear and not Zig-Zag 4) all alkanes exhibit isomerism
Answer» 4) all alkanes exhibit isomerism is the answer for the question because in order to exhibit isomerism alkanes should have minimum of 3 - 4 carbon atoms. Ethane, methane will not exhibit any isomerism. Therefore 4) is the answer