Question

Which of the following statements is/are correct?

• A. $C_n{H}_{2n}$ is the general formula of alkenes.
• B. In homologous series, all members have same physical properties.
• C. IUPAC means International Union of Physics and Chemistry.
• D. Butane contains two primary and secondary carbon atoms.

Answer 1

Answer: (A), (D)

The correct options are
A $C_n{H}_{2n}$ is the general formula of alkenes.
D Butane contains two primary and secondary carbon atoms.

(b) In homologous series, all members have the same chemical properties but different physical properties because London dispersion forces increases with increase in the molecular mass.
(c) IUPAC is the International Union of Pure and Applied Chemistry.