ximiyaa

ximiyaa

7th Grade

20 Qs

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Assessment

Quiz

Chemistry

7th Grade

Practice Problem

Hard

Created by

Asiya Abdullaeva

Used 2+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Qaysi indikator kislota ta'sirinde ren'in o'zgertpeydi?

universal indikator

fenolftalein

lakmus

metiloranj

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Anarda qaysi kislota ushiraydi?

sirke kislota

limon kislota

alma kislota

shavul kislota

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Etilenge salistirmali tig'izlig'i 1 ge ten' bolg'an oksid biyta'rep oksid bolsa, onin' 2 molindegi ja'mi atomlar sanin tabin'?

12 NA

3 NA

4 NA

6 NA

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Gidroksidlerdi tiykarliq qa`siyeti kemiyip bariw ta'rtibinde jaylastirin':

1.bariy gidroksid

2.berilliy gidroksid

3.stronsiy gidroksid

4.kalciy gidroksid

5.magniy gidroksid

1,2,5,4,3

1,3,4,5,2

2,1,4,5,3

2,5,4,3,1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ko'lemleri ten` bolg'an vodorod, azot ha`m uglerod(IV) oksid aralaspasinin' ortasha molekulyar massasin aniqlan?

20.2

24.7

26.5

28

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

400 gr 16% li CuSO4 eritpesi elektroliz qiling'anda anodda (inert elektrod) 17,92 litr (n.j) gaz ajiraldi. Elektroliz ushin sariplang`an tok mug`darin (F) aniqlan'?

18

3

1.6

3.2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

To'mendegi reakciyalardin' qaysi birin a'melge asirip bolmaydi:

1.KClO3 + Br2 =

  1. 2.NaBrO3 + Cl2 =

  2. 3. KBr + Cl2 =

  3. 4. NaCl + Br2 =

1,4

2,4

1,3

2,3

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