Câu 1. Cho các dung dịch sau: HCOOH, CH3COOH, CH3COOC2H 5, C3H5(OH)3, glucozơ, fructozơ, saccarozơ, C2H5OH, tinh bột, xelulozơ. Số lượng dung dịch có thể hoà tan được Cu(OH) 2 là A. 4 B. 5 C.6 D.7 Câu 2. Phát biểu không đúng là A. Sản phẩm thủy phân xenlulozơ và tinh bột (xúc tác H+ , t°) có thể tham gia phản ứng tráng gương. B. dung dịch glucozơ và fructozơ đều tác dụng với Cu(OH)2 khi đun nóng cho kết tủa đỏ gạch Cu2O. C. dung dịch glucozơ và fructozơ hoà tan được Cu(OH)2 tạo dung dịch màu xanh lam. D. Thủy phân (xúc tác H+ , t°) saccarozơ cho sản phẩm không tham gia phản ứng tráng gương.

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