43. (v16-117-18) Dibromalkanga oyuvchi kaliyning spirtdagi eritmasi tasir ettirilganda,
35,7 g kaliy bromid olindi. Agar dastlabki dibromalkanning hosil bolgan alkindan massa farqi 35,1 g gateng bolsa, alkinni toping, (q = 75%)
A)C4H6 B)C2H2
C) C3H4
D) C5H8