Uy » Online olimpiada » Kimyo olimpiada » 8-sinf Kimyo olimpiada №2 Kimyo olimpiada 8-sinf Kimyo olimpiada №2 InfoMaster Dekabr 16, 2022 44 Ko'rishlar 2 izohlar SaqlashSaqlanganOlib tashlandi 0 0 12345678910111213141516171819202122232425 Vaqtingiz tugadi! 8-sinf Kimyo olimpiada №2 08.12.2022 yil oo.uzedu.uz Online olimpiada savollari! 1 / 25 1 tonna sulfatkislota ishlabchiqarishuchunnecha kilogram pirit kerak bo’ladi? 1224 306 918 612 2 / 25 Quyidagi moddalarni tarkibida (a) qutbli kovalent (b)qutbsiz kovalent (c) donor –akseptor (d) ionli bog’lari bor bo’lganlarini aniqlang 1)N2 2)NH+4 3)CO 4)Mg CO3 5)H2 C2 O4 6)Ba(NO3 )2 a-2.3.4.5.6 b-1 c-2.3.6. d-4.6 a-2.3.4.5.6 b-1 c-2.3. d-4.6 a-2.3.4.5.6 b-1.5 c-2.3.6. d-4.6 a-2.3.4.5.6 b-1.5 c-2.3. d-4.6 3 / 25 10% nitrat kislota hosil qilish uchun 30% 50g nitrat kislotaga qancha suv qo’shish kerak? 15g 25g 100g 70g 4 / 25 Qaysi elementlaral lotropik o’zgarishga ega emas? H, C, N O, C, P F, Cl, Br Fe,C,Na 5 / 25 HF--- HCl ----HBr---HI quyidagi qator bo’ylab kislota kuchi, bog qutubliligi, qayytaruvchlik xossasi, barqarorligi qanday o’zgaradi ortadi, kamayadi, ortadi, kamayadi. kamayadi, ortadi ortadi, ortadi ortadi, ortadi, ortadi, kamayadi ortadi, ortadi, kamayadi, kamayadi 6 / 25 C D A B 7 / 25 B D C A 8 / 25 B C D A 9 / 25 C B A D 10 / 25 B D A C 11 / 25 B C A D 12 / 25 D B C A 13 / 25 C B D A 14 / 25 B A C D 15 / 25 A C D B 16 / 25 D B A C 17 / 25 B D C A 18 / 25 B A C D 19 / 25 B D C A 20 / 25 B D A C 21 / 25 D C B A 22 / 25 D A B C 23 / 25 D B A C 24 / 25 C A D B 25 / 25 A B C D 0% Testni qayta ishga tushiring Tomonidan Wordpress Quiz plugin Author: InfoMaster Foydali bo'lsa mamnunmiz