Forwarded from Kimyo | ESS test natijalar kanali
Sizlarga ishonaman sizlar eng zo’risizlar 💪💪💪
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Pirokatexinning hosilalari – gvayakol, evgenol, izoevgenol va adrenalinlar hisoblanadi.
📱 @Kimyo_ESS
📱 @Kimyo_ESS
📱 @Kimyo_ESS
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Forwarded from Kimyo | ESS test natijalar kanali
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Forwarded from Kimyo | ESS test natijalar kanali
41-savol oddiy reaksiyali masala vodorodga yod qo’shildi va hokozo oson
42-savol 7 ta reaksiya
43-savol: analitika 5 ta probika
42-savol 7 ta reaksiya
43-savol: analitika 5 ta probika
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Forwarded from Kimyo | ESS test natijalar kanali
Konyugirlangan tipdagi moddalar π bog’lar σ bog’larga nisbatan perpindikulyar joylashib uglerodlar orasidagi qo’sh bog’lar oddiy bog’larga nisbatan qisqargan uglevodorodlarni aniqlang
1) butadiyen-1,3.
2) butadiyen-1,2
3) propadiyen
4) benzol
A) 1,2 B) 2,3 C) 2,4 👍🏻D) 1,4
1) butadiyen-1,3.
2) butadiyen-1,2
3) propadiyen
4) benzol
A) 1,2 B) 2,3 C) 2,4 👍🏻D) 1,4
Forwarded from Kimyo | ESS test natijalar kanali
Kimyo | ESS test natijalar kanali
Konyugirlangan tipdagi moddalar π bog’lar σ bog’larga nisbatan perpindikulyar joylashib uglerodlar orasidagi qo’sh bog’lar oddiy bog’larga nisbatan qisqargan uglevodorodlarni aniqlang 1) butadiyen-1,3. 2) butadiyen-1,2 3) propadiyen 4) benzol A) 1,2…
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Eritmaga HCl qoʻshilganda qaysi modda gidrolizi kuchayadi?
1. ZnCl2
2. KCN
3. KNO3
4. Na2CO3
1. ZnCl2
2. KCN
3. KNO3
4. Na2CO3
Tartib raqami 83 elementning ml=0 ms=1/2 ms-1/2 elektron sonini toping.
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33,34,35- 3 mol metan 1500 C° qizdirilganda H2 nisbatan zichligi 4,8 boʻlgan gazlar aralashmasi hosil boʻldi.
Reaksiya natijasida hosil (unum=30%) boʻlgan mahsulotdan necha g benzol olish mumkin
Reaksiya natijasida hosil (unum=30%) boʻlgan mahsulotdan necha g benzol olish mumkin
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37. 100 g 49 % H2SO4 eritmasiga 0,2 mol Cr(OH)3 solindi, hosil bo’lgan eritmaga 236,6 25 % BaS eritmasi qo’shildi va biroz qizidirildi, cho’kmalar ajratib olindi(cho’kma tarkibida nordon tuz mavjud emas). Cho’kmalar mollari yig’indisini aniqlang.
Javob: ______________________________________________ (0,45)
Javob: ______________________________________________ (0,45)
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