
nazorat ishi 11
Authored by Jahongir Nurdinboyev
Others
11th Grade

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5 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1 mol NaCl necha gr suvda eritilsa 10% eritma hosil bo’ladi ?
526,5
585
73,5
735
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Eng yengil gaz
H
He
O
N
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quyidagilar ichidan qaysi biri suyuq metall .
Br
Hg
Na
Cl
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
P atomidagi neytronlar soni uning pratonlar sonidan 3 taga kop bo’lsa uning Ar toping
31
32
33
34
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
2H2+O2= 2H2O reaksiya uchun 2 mol olingan vadaroddan 20 sekuntda 0,4 moli qolgan bo’lsa . Bu reaksiya tezligi nechchiga teng bo’ladi .
A
B
C
D
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