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Sana
Nazorat ishi №3 Nazorat shakli:masala yechish.
1.Ohaktoshdagi elementlarni % nisbatlarini aniqlang
2. Quyidagi o’zgarishlarni amalga oshiruvchi reaksiya tenglamalarini yozing.
CaCO3→CaO→Ca(OH)2→CaCl2→CaCO3
3.11,2l(n.sh)da is gazi yonganda qancha miqdor issiqlik ajralib chiqadi?
Kompetentlikni aniqlash uchun materiallar:
4.Ohaktosh haqida nimalarni bilasiz?
5. Dalomitdagi elementlarni massa nisbatini aniqlang.
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Sana
4-Nazorat ishi.
1.Kremniyning fizik xossalarini yozing.
2.3,2gr silan olish uchun necha gr magniy silidsid xlorid kislota bilan reaksiyaga kirishadi?
3.Si ning oxirgi elektronini to’rtta kvant sonlarini yozing.
Kompetentlikni aniqlash uchun materiallar:
4.Qumdagi kremniy va kislorodning massa nisbatini yozing.
5.Yurtimizdagi qaysi shaharlarining binolarida sopoldan tayyorlangan naqshlarni uchratamiz
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Sana
5-Nazorat ishi. Mavzu:Metallar va elektroliz mavzularini umumlashtirish.
Nazorat shakli:Test
1.Noyob metallar berilgan qatorni toping.
A)Ag,Au,Pt,Pd. B)Ag,Cu,Au,Sn. S)Mo,V,K,Zn D)U,vv,Ra
2.Nodir metallar berilgan qatorni toping.
A)Ag,Au,Pt,Pd. B)Ag,Cu,Au,Sn. S)Mo,V,K,Zn D)Li,K,Na,Ca
3.Projektor va reflector tayyorlashda ishlatiladigan metallarni qatorni toping.
A)Au,Cu B)In,Au S)Au,Ag D)Fe,Al
4.Eng quyi suyuqlanish haroratiga ega bo’lgan metall qaysi?
A)Hg B)Au S)Cu D)In
5.Metallarning aktivlik qatorini tuzgan olim kim?
A)A.M.Butlerov B)N.N.Beketov S)A.Lavuaze D)K.Vinkler
6.Qaysi reaksiya amalda bormaydi?
A)Zn+Pb(NO3)2= B)Pb+NaNO3= S)Hg(NO3)2+Cu= D)Cu(NO3)2+Na=
7.22,4gr Fe zanglashi uchun (n.sh.da)necha l kislorod kerak?
A)22,4l B)6,72l S)67,2l D)4,48l
8.Elektroliz qonunlarini yaratgan olim kim?
A)M.Faradey B)A.M.Butlerov S) N.N. Beketov D)G.Shtall
9.Faradey soni nechaga teng? A)96500 B)965 S)9650 D)6,02
10.Chili selitrasini formulasi berilgan qatorni toping.
A)KNO3 B)NaNO3 S)Na2SO4 D)K2SO4
11.Katodda sodir bo‘ladigan jarayon
A) Cu2+ + 2ē=Cu0 B) 2I– – 2ē=I2 S) 2CL– – 2ē CL2
12.AgNO3eritmasi orqali 6A tok 30 minut davomida o’tkazilganda qancha kumush ajralib chiqadi? A)12gr B)14gr S)6gr D)3gr
13. 13,5 gr aluminiyda nechta atom bor?
A)7.02*1023 B)5,01*1023 S)6,02*1023 D)3,01*1023
14.Passiv metallar keltirilgan qatorni toping.
A)Cu,Hg,Ca B)Cu, Ag, Au S)Na,K, Zn D)Zn,Ag ,Au
15. X qaysi element bo’lishi kerak?
A)Cr B) Fe S) Cd D) Au
Kompetentlikni aniqlash uchun materiallar:
19.Biz doimo foydalanadigan yoritgich lampochkasida qanday metallar borligi haqida bilib oldingiz?_______________________________________________
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20.O’zbekistonda mavjud bo’lgan qanday metall konlari haqida eshitgansiz?
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Savol
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