UPSC CAPF (AC) 2024 Paper I · Question 14

Question 14 of the UPSC CAPF (AC) 2024 Paper I (4 August 2024). Try it first, then open the answer and explanation.

1. CAPF 2024 · P-I · Q14 · General Science · Chemistry

   Which among the following is correct with respect to bond formation in an ethyne molecule?

   1. Carbon-Carbon single bond
   2. Carbon-Carbon double bond
   3. Carbon-Carbon triple bond
   4. Carbon-Hydrogen double bond

   किसी एथाइन अणु में आबंध निर्माण के संबंध में, निम्नलिखित में से कौन-सा सही है?

   1. कार्बन-कार्बन एकल आबंध
   2. कार्बन-कार्बन द्वि-आबंध
   3. कार्बन-कार्बन त्रि-आबंध
   4. कार्बन-हाइड्रोजन द्वि-आबंध
   Show answer

   Answer: (3) Carbon-Carbon triple bond

   उत्तर: (3) कार्बन-कार्बन त्रि-आबंध

   Ethyne (acetylene), C2H2, has the structure H-C≡C-H: the two carbon atoms are joined by a triple bond (one sigma and two pi bonds) and each carbon forms a single bond with a hydrogen atom. A carbon-carbon single bond is found in ethane and a double bond in ethene, and C-H bonds are always single.

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