Asked in PMC Practice Test 13 (2021) 2021Moderate

The phenomenon in which compounds have the same molecular formula but different structural formula is called:

Correct answer: B. Isomerism

  • A. Reforming
  • B. Isomerism
  • C. Polymorphism
  • D. Hybridization

Explanation

Compounds that have the same molecular formula but different chemical structures are called isomers and phenomenon is called isomerism.OPTION A: A processing technique by which the molecular structure of a hydrocarbon is rearranged to alter its properties.OPTION B: Compounds that have the same molecular formula but different chemical structures are called isomers.OPTION C: Polymorphism is the ability of a substance to crystallize into different crystalline forms.OPTION D: Hybridization is the idea that atomic orbitals fuse to form newly hybridized orbitals.

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About Isomerism

Isomerism occurs when compounds have the same molecular formula but different atom arrangements or spatial orientations. The content includes chain, position, functional, metameric and tautomeric isomerism, along with geometrical and optical isomerism, including cis-trans forms, E/Z notation, chirality and enantiomers.

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