Which of the following statements concerning structural isomers is/are correct?
1)Structural isomers have the same elemental composition,but the atoms are linked in different ways.
2)Structural isomers have identical physical properties,but different chemical properties.
3)Structural isomers have identical structures,but contain different isotopes of the same elements.
A) 1 only
B) 2 only
C) 3 only
D) 1 and 2
E) 1,2,and 3

Question

Quizplus · Accepted Answer

Structural isomers are compounds with the same chemical formula but different structural formulas. Therefore, statement 1 is correct, as they have the same elemental composition but different connectivity. However, statement 2 is incorrect, as they have different physical and chemical properties due to their different chemical structures. Statement 3 is also incorrect, as structural isomers have different structures, and isotopes refer to the same element with a different number of neutrons.

Which of the Following Statements Concerning Structural Isomers Is/are Correct