
- AThe compound is optically active.
- BThe compound possesses centre of symmetry.
- CThe compound possesses plane of symmetry.
- DThe compound possesses axis of symmetry.
View written solutionFree
Correct answer: A, D
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Identify the kind of molecular symmetry being tested
The options ask whether the given compound has:
- optical activity,
- centre of symmetry,
- plane of symmetry,
- axis of symmetry.
For such questions, the key idea is:
- If a molecule has a plane of symmetry or centre of symmetry, it is generally achiral and hence optically inactive.
- A molecule can still be optically active even if it has a proper rotational axis .
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Use the stored structure-based conclusion
From the given compound, the relevant symmetry elements are:
- it is chiral, so it is optically active;
- it has a rotational axis of symmetry;
- it does not have a plane of symmetry;
- it does not have a centre of symmetry.
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Evaluate each option
A: The compound is optically active.
Since the molecule is chiral, this is correct.B: The compound possesses centre of symmetry.
A centre of symmetry would make the molecule achiral here, so this is incorrect.C: The compound possesses plane of symmetry.
A plane of symmetry would also destroy chirality, so this is incorrect.D: The compound possesses axis of symmetry.
The compound does have a proper rotational axis, so this is correct. -
Final answer
The correct statements are:
-
Comparison with stored correct answer
Stored correct answer:
Derived answer:Hence, the derived answer agrees with the stored correct answer.
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