Question

Hн Н
н-с-с-с-н
Hн Н
3
Propane
cң​

Answer 1

Answer:

Heptane has nine isomers, or eleven if enantiomers are counted:

Heptane (n-heptane), H3C–CH2–CH2–CH2–CH2–CH2–CH3,

2-Methylhexane (isoheptane), H3C–CH(CH3)–CH2–CH2–CH2–CH3,

3-Methylhexane, H3C–CH2–C*H(CH3)–CH2–CH2–CH3 (chiral),

2,2-Dimethylpentane (neoheptane), H3C–C(CH3)2–CH2–CH2–CH3,

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