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nazorat ishi 11

Authored by Jahongir Nurdinboyev

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11th Grade

nazorat ishi 11
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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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