08 - sinf chsb-4 — uzb — 1-variant

08 – sinf. chsb-4 1-variant1000002105094 1000002 1000002105094 emaktab 1000002105094 emaktab 1. (b) ammiak katalizator ishtirokida yondirilganda qanday mahsulotlar hosil boê»ladi? a) no va h2 b) no va h2o c) n2 va h2o d) n2 va h21000002105094 emaktab 2. (b) agno3 termik parchalanishi reaksiyasining tenglamasini aniqlang a) agno3 → ag + n2 + o2 b) agno3 → ag + no2 + o2 c) agno3 → ag2o + no2 d) agno3 → agno2 + o2 3. (b) fosforli mineral oê»gê»itni tanlang a) kaliy xlorid1000002105094 emaktab b) karbamid c) ammiakli selitra d) oddiy superfosfat 4. (q) 1 mol ammiak tarkibida nechta vodorod atomi mavjud? a) 18,06 â· 1023 b) 24,08 â· 1023 c) 30,10 â· 1023 d) 36,12 â· 1023 5. (q) 192 …

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