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MHT CET Chemistry Hydrocarbons 2026 MHT CET 2026 (15 April Shift 1)

MHT CET Chemistry Question (2026) — Solution

Question

When a mixture of two different alkyl halides reacts with metallic sodium in dry ether, the formation of a possible number of alkanes are-

Options

  1. A. Two
  2. B. Three
  3. C. Four
  4. D. Five

Answer

B. Three

Step-by-step solution

Let the two different alkyl halides be R-X and R'-X. When this mixture reacts with metallic sodium in dry ether (Wurtz reaction), three types of coupling reactions take place. R-X + 2Na + X-R R-R + 2NaX R'-X + 2Na + X-R' R'-R' + 2NaX R-X + 2Na + X-R' R-R' + 2NaX Thus, a total of three different alkanes are formed. Answer: Three

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