
Phân bón hoá học
Authored by Trần Hà
Chemistry
KG - University
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phân đạm cung cấp cho cây
N2
HNO3
NH3
N dạng NH4+, NO3-.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Thành phần của supephotphat đơn gồm
Ca(H2PO4)2
CaHPO4, CaSO4
CaHPO4
Ca(H2PO4)2, CaSO4.
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Độ dinh dưỡng của phân kali là
%mKCl
%mK2SO4.
%mK2O.
%mKNO3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Thành phần của phân amophot gồm
(NH4)3PO4 và NH4H2PO4
NH4H2PO4 và (NH4)2HPO4
(NH4)2HPO4 và (NH4)3PO4
Ca(H2PO4)2 và NH4H2PO4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Thành phần chính của supephotphat kép là
Ca(H2PO4)2, CaSO4, 2H2O
Ca3(PO4)2, Ca(H2PO4)2
Ca(H2PO4)2.
Ca(H2PO4)2, H3PO4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Thành phần của phân nitrophotka gồm
KNO3 và (NH4)2HPO4
(NH4)3PO4 và KNO3
Ca(H2PO4)2 và NH4H2PO4
(NH4)2HPO4 và (NH4)3PO4
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Thêm 250 ml dung dịch NaOH 2M vào 200 ml dung dịch H3PO4 1,5M. Sản phẩm thu được là hỗn hợp:
NaOH; Na3PO4
H3PO4; NaH2PO4
NaH2PO4; Na2HPO4
Na3PO4; Na2HPO4
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