(a) Give IUPAC names and formulae of an organic compound containing single bonds and the other containing a triple bond.
(b) Which of the following is the molecular formula of benzene?
C₆H₆, C₆H₁₀, C₆H₁₂, C₆H₁₄
(c) Which of the two has a branched chain : isobutane or normal butane?

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Solution

(a) The IUPAC name of the compound, comprising four carbon and hydrogen single bonds, is methane. And, the IUPAC name of the compound, comprising one triple bond between the carbon atoms and two single bonds between the carbon and hydrogen atoms, is ethyne.

(b) C₆H₆ is the molecular formula of benzene.

(c) Iso-butane has a branched chain, while normal butane has a single chain of carbon atoms.

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(a) Give IUPAC names and formulae of an organic compound containing single bonds and the other containing a triple bond. (b) Which of the following is the molecular formula of benzene? C6H6, C6H10, C6H12, C6H14 (c) Which of the two has a branched chain : isobutane or normal butane?