69,36 g spirtning oksidlanishidan 68 g aldegid hosil bolsa, shunday ma

85. (v13-102-2) 69,36 g spirtning oksidlanishidan 68 g aldegid hosil bolsa, shunday massadagi spirtdan olinadigan kislotani metanol bilan ozaro tasiridan hosil boladigan efirning massasini (g) toping. A) 78,88 B)130
C) 44,2
D) 88,4