1. 1. Leo ni thi my a !!! Vui gh ?!?
2. 2. 1 1 2 2 3 3 4 4 5 5
3. 3. 1 2 3 5 6 8 9 10 11 4 12 7
4. 4. Cu Hi: Cu no sau y din t ng tnh cht ha hc ca lu hunh ? B C A D Lu hunh ch c tnh oxi ha. Lu hunh ch c tnh kh. Lu hunh va c tnh oxi ha, va c tnh kh. Lu hunh khng c tnh oxi ha v khng c tnh kh.
5. 5. Cu Hi: Lu hunh c cc s oxi ha no ? A B C D -2, -4, +6, +8 -1, 0, +2, +4 -2, +6, +4, 0 -2, -4, -6, 0
6. 6. Cu Hi: Trong s cc kim loi sau : Al, Cr, Fe, Mg, Zn, Ag, Cu. S kim loi tc dng c vi H2SO4 c ngui l: 2 3 4 5 A B C D
7. 7. Cu Hi: Phng trnh no KHNG th hin tnh oxi ha ca lu hunh? A B C D 2 32Al+3S Al S 2 2H +S H S Hg +S HgS 2 2S+O SO
8. 8. Cu Hi: Chn cu tr li sai A B C D Oxi c m in ln ch ng sau flo Oxi tc dng c vi tt c cc kim loi v phi kim Oxi l cht kh khng mu nng hn khng kh Oxi l nguyn t phi kim hot ng, c tnh oxi ha mnh
9. 9. Cu Hi: Cht no sau y va c tnh ha va c tnh kh? A B C D O3 H2SO4 H2S H2O2
10. 10. Cu Hi: SO2 c th phn ng vi tt c cc cht no trong nhm sau y A B C D H2S ,O2, Ca(OH)2 ,CaO KOH, Na2O, Ba(OH)2, O2 H2O, O2, NaOH, Br2 C ba cu trn u ng
11. 11. Cu Hi: Phn bit oxi v ozon bng A B C D Axit sunfuric Ag KI NaOH
12. 12. Cu Hi: Axit sunfuric c KHNG dng lm kh kh no sau y? A B C D NH3 O2 CO2 SO2
13. 13. Cu Hi: C 3 dung dch :NaOH,H2SO4, HCl.Thuc th duy nht phn bit 3 dung dch l A B C D CaCO3 Na2CO3 Qi tm Al
14. 14. Cu Hi: Trng hp no lu hunh phn ng ngay nhit thng A B C D Hg O2 H2 Fe
15. 15. Cu Hi: Cho lung 3.36l kh H2S (ktc) vo 400 ml dung dch NaOH 0.5M, sn phm to thnh l A B C D NaHS, H2S d Na2S, NaOH d Hn hp NaHS v Na2S Na2S