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Logaa1234
2 năm trước
HELP ME 1) CTTQ của este tạo bởi axit đơn,no,mạch hở và ancol đơn chức no mạch hở có dạng: A) CnH2n+2O2 (n ≥2) B) CnH2nO2 (n ≥3) C) CnH2n-2O2 (n ≥4) D) CnH2nO2 (n ≥2) _____________________________________________ 2) một hợp chất hữu cơ đơn chức có CT: C3H6O2 ko tác dụng vs kim loại mạnh, chỉ tác dụng vs dd kiềm, nó thuộc dãy đồng đẳng: A) andehit B) este C) axit D) ancol _______________________________________________________ 3) số đồng phân este ứng vs CTPT C3H6O2 là A) 6 B) 2 C) 3 D) 4 _________________________________________________________ 4) Có bao nhiêu CTPT C3H6O2 là đồng phân cấu tạo của nhau? A) 6 B) 5 C) 3 D) 4 __________________________________ CÓ GIẢI THIK
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