Question

Label each hydrogen atom in the following compound as primary (1^o), secondary (2^o), or tertiary (3^o)

(a)

(b)

(c)

(d)

e)

(f)

Short answer

(a)

(b)

(c)

(d)

(e)

(f)

Step-by-step solution

Definition of primary (1o), secondary (2o), or tertiary (3o) hydrogen

Hydrogen on a carbon attached to only one other carbon is primary hydrogen. Hydrogen on carbon is attached to only two other carbons is secondary hydrogen. Hydrogen on a carbon attached to three other carbons is Tertiary hydrogen.

(a)

(a)Primary (1^o), and tertiary (3^o) hydrogens are present.

(b)

(b) Primary (1^o), and secondary (2^o) hydrogens are present.

(c)

(c)Primary (1^o), and secondary (2^o) hydrogens are present.

(d)

(d)Only secondary (2^o) hydrogens are present.

(e)

(e)Primary (1^o), secondary (2^o), or tertiary (3^o) hydrogens are present.

(f)

(f)Secondary (2^o) hydrogens and tertiary (3^o) hydrogens are present.