VKC ScienceChemistry for written exams Telegram

UPSC Combined Geo-Scientist

Chemist

  • 2 objective papers
  • 120 questions each
  • 2 h per paper
  • 100 + 300 marks

Prelims Paper II covers chemistry.

UPSC Combined Geo-Scientist, Prelims · 2024 · Paper II, Chemistry · Q81 of 120

Geo-Scientist Prelims 2024 Chemistry Q81: Consider the following statements regarding structures of…

QuestionAromaticity / bond fixation in polycyclic arenes

Consider the following statements regarding structures of naphthalene and biphenylene :

  1. The C1-C2 bond order is more than C2-C3 bond in naphthalene.
  2. The C2-C3 bond order is more than C1-C2 bond in naphthalene.
  3. The C1-C2 bond order is more than C2-C3 bond in biphenylene.
  4. The C2-C3 bond order is more than C1-C2 bond in biphenylene.

Which of the statements given above are correct?

  1. (a) 1 and 3
  2. (b) 1 and 4
  3. (c) 2 and 3
  4. (d) 2 and 4

Part of VKC Basic

Read the answer and its explanation with VKC Basic

VKC Basic (₹999 for 6 months) opens every solved answer, the notes, the handbook and the daily answer archive. Every Mains test series includes it.

See what is included Already a member? Sign in

Take this paper offlineAll 120 questions with answers and explanations in one PDF.
Download PDFJoin Telegram