Practice Problem

For each of the compounds A through F indicate the number of structurally-distinct groups of carbon atoms, and also the number of distinct groups of equivalent hydrogens. Enter a number from 1 to 9 in each answer box.
A three-dimensional model for each compound will be displayed by clicking on its structure or letter designation. The window in which the model is displayed may be moved to suit the viewer. Remember, many of these compounds are conformationally mobile, and the model depicts only one conformer.

		A	Number of distinct carbon atoms: ... Number of distinct hydrogen groups:
		B	Number of distinct carbon atoms: ... Number of distinct hydrogen groups:
		C	Number of distinct carbon atoms: ... Number of distinct hydrogen groups:
		D	Number of distinct carbon atoms: ... Number of distinct hydrogen groups:
		E	Number of distinct carbon atoms: ... Number of distinct hydrogen groups:
		F	Number of distinct carbon atoms: ... Number of distinct hydrogen groups:

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