9-sinf kimyo 7-bsb @summativ_formativ_baholash

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[image: ] [bookmark: _hlk159279163]umumta’lim maktabining 2024-2025-o‘quv yilining kimyo fanini o‘zlashtirish darajasini aniqlash uchun topshiriqlar 9-___sinf o‘quvchisi __________________________________________________ f.i.sh. o‘quvchi to‘plagan umumiy ball:_____ (maksimal ball: 30) iv chorak 7-bsb 1. xromning elektron konfiguratsiyasini yozing. ____________________________________________________________________________________________________________________________________________ 2. [bookmark: _hlk164756165]quyidagi o‘zgarishlarni amalga oshirishga imkon beradigan reaksiyalarning tenglamalarini yozing. fe → feso4 → fe(oh)2 → fe(no3)2 ________________________________________________________________________________________________________________________________________ __________________________________________________________________ 3. marganesning oksidlanish darajasi o‘zgarishini aniqlang mnso4 – mn(oh)2 – mncl2 4. [bookmark: _hlk165819033]16,25 g temirning xlor bilan o‘zaro ta’siri natijasida temir (iii) xlorid olindi. reaksiya natijasida hosil bo‘lgan mahsulotning massasini aniqlang. berilgan: yechish: 5. [bookmark: _hlk165819118] quyidagi ionlarga mos keladigan javoblarni yozing. metall ioni bir nechta tomchi naoh qo‘shilishidan hosil bo‘ladigan rang o‘zgarishlari reaksiya tenglamasi fe2+ fe3+ baholash mezoni ball to‘g‘ri javoblar baholash mezoni 2 1s2 2s2 2p6 3s2 3p6 3d5 4s1 to‘g‘ri javob keltirilgan bo‘lsa; 2 ball 9 fe → feso4 → fe(oh)2 → fe(no3)2 fe+ h2so4 → feso4+h2 feso4+naoh→ fe(oh)2+ na2so4 fe(oh)2+2hno3= fe …

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) masalalar yechish yo‘li to‘g‘ri, lekin hisobda xatolar bo‘lib, birliklarga e’tibor berilmasa: 2 ball d) agar masala umuman noto‘g‘ri ishlangan, bo‘lsa; 1 ball e) agar masala bajarmagan bo‘lsa; 0 ball 12 metall ioni bir nechta tomchi naoh qo‘shilishidan hosil bo‘ladigan o‘zgarishlar reaksiya tenglamasi fe2+ yashil cho‘kma feso4+2naoh=na2so4+ fe(oh)2 fe3+ qo‘ng‘ir cho‘kma fecl3+3naoh=3nacl+ fe(oh)3 har bir qator to‘g‘ri ifodalansa; 3 ball dan jami: 12 ball jami 30 ball image1.png image2.png

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[image: ] [bookmark: _hlk159279163]umumta’lim maktabining 2024-2025-o‘quv yilining kimyo fanini o‘zlashtirish darajasini aniqlash uchun topshiriqlar 9-___sinf o‘quvchisi __________________________________________________ f.i.sh. o‘quvchi to‘plagan umumiy ball:_____ (maksimal ball: 30) iv chorak 7-bsb 1. xromning elektron konfiguratsiyasini yozing. ____________________________________________________________________________________________________________________________________________ 2. [bookmark: _hlk164756165]quyidagi o‘zgarishlarni amalga oshirishga imkon beradigan reaksiyalarning tenglamalarini yozing. fe → feso4 → fe(oh)2 → fe(no3)2 ________________________________________________________________________________________________________________________________________ _______________...

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