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Identifying Chirality & Symmetry Elements

The structural formulas of twelve compounds, A through L, are drawn below. You may select any one of these by clicking the radio button beneath the structure.
Once you have selected a compound, answer the following questions concerning the number of stereogenic centers, chirality and symmetry of the compound.

Stereochemistry of substituted cyclopentanes A-F: cis/trans dimethylcyclopentanes and methylcyclopentanols
Stereochemistry of trisubstituted cyclopentanediol/cyclopentanol stereoisomers G-L with dimethyl and hydroxyl groups

1. How many stereogenic centers are present in this compound? ... , 1 , 2 , 3 , 4 , 5

2. Is this compound chiral or achiral? ............ chiral , achiral

3. What symmetry element(s) are present in this compound? .... none , a plane of symmetry , a C2 axis of symmetry