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1) số đồng phân este ứng vs CTPT C4H8O2 là A) 6 B) 2 C) 5 D) 4 ( viết đồng phân ra ròi mới chọn nhé) _____________________________________ 2) số hợp chất đơn chức, đồng phân cấu tạo của nhau có cùng CTPT C4H8O2, đều tác dụng vs dd NaOH A) 4 B) 6 C) 3 D) 5 _______________________________________________ 3) số đồng phân este ứng vs CTPT C5H10O2 là A) 8 B) 9 C) 10 D) 7 viết đp ra luôn nhé ________________________________________________ 4) C4H6O2 có bao nhiu đp mạch hở phản ứng dc vs dd NaOH? A) 6 đp B) 7 đp C) 5 đp D) 8 đồng phân ______________________________________________ 5) chất nào sau đây ko phải là este ? giải thik? A) HCOOC6H5 B) HCOOCH3 C) CH3COOH D) CH3COOCH3 __________________________________ GIẢI THIK CHI TIẾT
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