ICSE Class 10 Chemistry Question 74 of 93

Organic Chemistry — Question 74

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74
Question

Question 6(2018)

Give the :

(i) IUPAC name of the homologous series.

(ii) Characteristic bond type.

(iii) IUPAC name of the first member of the series - in each case i.e., (a) and (b) relating to the homologous series of hydrocarbons - whose general formula is (a) CnH2n-2 (b) CnH2n+2

Answer

(a) Hydrocarbons with general formula CnH2n-2

  1. IUPAC name of the homologous series — Alkynes
  2. Characteristic bond type — Triple covalent bond
  3. IUPAC name of the first member of the series — Ethyne

(b) Hydrocarbons with general formula CnH2n+2

  1. IUPAC name of the homologous series — Alkanes
  2. Characteristic bond type — Single covalent bond
  3. IUPAC name of the first member of the series — Methane
Answer

Answer: Alkynes, Triple covalent bond, Ethyne, Alkanes, Single covalent bond, Methane