. (v16-118-32_Dibromalkanga rux metalli tasir ettirilganda 31,5 g rux

72. (v16-118-32_Dibromalkanga rux metalli tasir ettirilganda 31,5 g rux bromid olindi. Agar dastlabki dibromalkanning hosil bolgan alkendan massa farqi 34,52 ga teng bolsa, alkenni toping, (q = 70%) A)C4H8 B)C2H4 C)C5H10 D)C3H6