SECTION A; Questions 1- 20 Mark your answers on the sheet provided 1. Which of t
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SECTION A; Questions 1- 20 Mark your answers on the sheet provided 1. Which of the following is the best definition of stereoisomerism? Molecules that have the same numbers and kinds of atoms connected in a different sequence. A. B. Molecules that have the same arrangement of atoms, but different electronic structures. C. Molecules that have the same mass, but different atom types. D. Molecules that have the same connectivities, but different 3-D arrangements of atoms. E. Molecules that have different isotopes of the same atoms. 2. Which of the following is a valid set of quantum numbers for a unique electron in an atom? A. n-4, 1 2, m1-0, ms- C. n-3, l = l, m1-0, m,-0 3. The noble gases all have similar physical and chemical properties. Which of the following provides the best explanation for this observation about these elements? A. They are all in the same period B.) They all have a fully occupied valence shell C. They are all electropositive D. They all have p-orbitals E. They are all non-metalsExplanation / Answer
Ans 1 D) Molecules that have the same connectivities , but different 3-D arrangements of atoms.
Stereoisomers have the same molecular formula , alongwith the same connectivity of these atoms. They have different 3-Dimensional arrangement of atoms. These are of two types , enantiomers and diastereomers.
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