1-avgust( i smena )2

kimyo-2023 1-avgust savollari i smena 2-variant 1. etenni gidrogenlash reaksiyasida qaysi katalizatorni qo`llash unumni yuqori bo`lishiga olib keladi ? a) pt b) ni c) fe d) pd 2. valin molekulasidagi 3-uglerodning oksidlanish darajasini hisoblang . a) -1 b) -2 c) -3 d) 0 3. geptadekan kislotadagi sp3 gibrid orbitallar soni nechta ? a) 64 ta b) 68 ta c) 40 ta d) 44 ta 4. au + kcn + o2 + h2o = ……. ushbu reaksiya mahsuloti bo`lmish kompleks birikma molar massasini hisoblang ! a) 252 b) 268 c) 288 d) 286 5. propen yondirilganda sarflangan kislorod va hosil bo`lgan korbanat angidrit farqi 0,3 mol bo`lsa, hosil bo`lgan suv miqdorini aniqlang . a) 0,6 b) 0,9 c) 0,3 d) 0,45 …

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