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Organic Chemistry — Chemistry STD 10 — Question

ICSE BoardEnglish MediumSTD 10ChemistryOrganic Chemistry1 Mark
MCQ
Acetylene polymerises into benzene by joining :
  • ✓
    3 molecules
  • B
    2 molecules
  • C
    4 molecules
  • D
    6 molecules
✓

Answer

Correct option: A.
3 molecules
(a) 3 molecules
Explanation: When acetylene gas is passed through red hot iron or copper tubes, polymerises and gives benzene.
$ \underset {\text {Acetylene}}{3 C_2 H_2}$$\xrightarrow[40^{\circ} C ]{\text { red hot copper tub

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