hgjk

hgjk

1st - 5th Grade

97 Qs

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hgjk

hgjk

Assessment

Quiz

Mathematics

1st - 5th Grade

Practice Problem

Medium

Created by

bekturganorazov apple_user

Used 1+ times

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97 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

0,1 М NaOH ерітіндісінің рН мәні қандай болады?

1.0
3.0
4.0
2.0

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Берілген жүйе CaCO3(қ)=CaO(қ)+CO2(г) үшiн жылдамдық қалай өрнектеледі?

ʋ=k
υ =k[CaCO3]
υ =R-1
υ =k[CaО]
υ =R[CaО].[CO2]

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Берілген теңдеулердің қайсысы осмостық қысымға арналған Вант- Гоффтың математикалық теңдеуі?

π =CRT
Р =WRT
π=(n/V)RT
π =KB(x)
π =Eb(x)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

75. Әлсiз электролиттiң диссоциациялану дәрежесiнiң (α) шамасы неге тең?

α < 3%
α =100%
α =5%
α > 30%
α =3-30%

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

ZnCl2+H2O=…гидролиздi аяқтаныз және рН көрсетiнiз:

ZnOHCl+HCl, pH<7
Zn(OH)2+HCl, pH=7
Zn(OH)2+HCl, pH>7
Zn(OH)2, pH<7
ZnOHCl+HCl, pH=7

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Қай молекулада байланыс коваленттi–полюстi болады?

HF
Cl2
H2
N2
O2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Қай формула натрий (II) тетрагидроксоцинкатының комплексті қосылысына сәйкес келеді?

Na2[Zn(OH)4]
Na[Zn(OH)4]
[KBr][Pt(NO2)5
Na2[Cu(OH)4]
Na2[Zn(OH)3]

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