1) Một HCHC đơn chức có CT C3H6O2 ko tác dụng vs kim loại mạnh, chỉ tác dụng vs dd kiềm, nó thuộc dãy đồng đẳng nào? A) Andehit B) este C) axit D) ancol _____________________________________________________ 2) số hợp chất đơn chức, đp cấu tạo của nhau có cùng CTPT C4H8O2, đều tác dụng vs dd NaOH : A) 4 B) 6 C) 3 D) 5 _________________________________________________________ 3) este có CTPT CH3COOCH3 có tên gọi là: .................... 4) metyl fominat có CTPT là:.................... GIẢI THIK CHI TIẾT TẤT CẢ

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