Free Printable 8-sinf 2-test

1.

2 mol gazdagi malikulalar soni qancha

a)

sonini aniqlab bo'lmaydi

b)

$12\cdot10^{23}$ ta

c)

$3\cdot10^{23}$ ta

d)

$6\cdot10^{23}$ ta

2.

1 litr suvdagi malikulalar sonini toping

a)

$\frac{1}{3}\cdot10^{26\ }$ ta

b)

$3\cdot10^{26\ }$ ta

c)

$18\cdot10^{26\ }$ ta

d)

$108\cdot10^{20\ }$ ta

3.

vadarod malikulasining massasini toping

a)

aniqlab bo'lmaydi

b)

2 gram

c)

2 mab

d)

1 mab

4.

havoning moliar massasi 29 g/mol bo'lsa havo malikulasi massasini toping

a)

29 g

b)

29 mab

c)

$1.67\cdot10^{-27}$ kg

d)

$48\cdot10^{-27}$ kg

5.

1 mol kislaroddagi malikulalar 1 mol ugleroddagi malikulalardan necha marta ko'p

a)

ular teng

b)

8/3

c)

4/3

d)

3/2

6.

1 mol kislarod malikulalar massasi 1 mol uglerod malikulalar massasidan necha marta ko'p

a)

ular teng

b)

8/3

c)

4/3

d)

3/2

7.

tarkibida $9\cdot10^{23}$ malikulasi bo'lgan modda necha mol bo'ladi

a)

0.5 mol

b)

1.5 mol

c)

0.25 mol

d)

0.1 mol

8.

bu moddaning 36 girami 2 mol bo'lsa qanday modda haqida gap ketayabdi

a)

kislarod

b)

havo

c)

suv

d)

azot

9.

3 g suvdagi malikulalar sonini toping

a)

$3\cdot10^{23}$

b)

$10^{20}$

c)

$3\cdot10^{20}$

d)

$10^{23}$

10.

malikulalar soni $\frac{1}{3}\cdot10^{23}$ malikulasi bo'lgan suv hajmini toping ( $m^3$ )

a)

1

b)

10

c)

20

d)

0.5

8-sinf 2-test

Total questions: 10

Worksheet time: 5mins

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