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Kimyo 8-sinf

Authored by Davronbek Zobidov

Chemistry

8th Grade

Used 30+ times

Kimyo 8-sinf
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1. Quyidagi moddalar anorganik moddalarning qaysi sinfiga kiradi: Na2O, BaO, CO2, Al2O3

Oksidlar

Asoslar

Kislotalar

Tuzlar

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2. Ikki negizli kislotalarni ko‘rsating.

H2S, H3PO4

H2SO4, HNO3

H2CO3, H2SiO3

H2S, H3AsO3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

3. Ushbu tuzning texnik nomini toping: NaHCO3

osh tuzi

ichimlik sodasi

soda

ohaktosh

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

4. XIX asrning 60-yillarida nechta kimyoviy element fanga ma’lum edi?

30

63

108

118

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

5. Metallarga ham, metallmaslarga ham xos bo‘lgan xususiyatlarni namoyon qiluvchi elementlar qanday nomlanadi?

asl metallar

metalloidlar

yarim metallar 

amfoter metallar

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

6. Ishqoriy metalldan boshlanib inert gazlar bilan tugaydigan gorizontal qator . . . deb ataladi.

davrlar

guruhlar

qatorlar

oilalar

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

7. Atom tuzilishining planetar modelini taklif etgan olim kim edi?

Edvard Franklend

Ernest Rezerford

Antuan Lauvaze

Yakobe Berselius

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