1.

Triple bond in ethyne is formed from [MP PMT 1990; NCERT 1979; EAMCET 1978; AMU 1985; CPMT 1988; MADT Bihar 1982; MH CET 2000]

A.                 Three sigma bonds         
B.                 Three pi bonds
C.                 One sigma and two pi bonds
D.                 Two sigma and one pi bond
Answer» D.                 Two sigma and one pi bond


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