UH 2

UH 2

12th Grade

12 Qs

quiz-placeholder

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UH 2

UH 2

Assessment

Quiz

Chemistry

12th Grade

Easy

Created by

asaadahn s55

Used 2+ times

FREE Resource

12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Biloks atom C pada HCO3- adalah...

+1

+2

+3

+4

+5

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Reaksi redok dibawah ini belum setara

MnO4- + a H+ + bHSO3- ---> Mn2+ + c H2O + SO42-

Berapakah nilai dari a, b dan c

1 - 3 - 2

1 - 5 - 3

1 - 7 - 4

2 - 2 - 2

2 - 4 - 3

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Reaksi redoks dibawah ini belum setara

MnO4- + H+ + HSO3- ---> Mn2+ + H2O + SO42-

berapakah perubahan biloks Mn

+3 ke +2

+4 ke +2

+5 ke +2

+6 ke +2

+7 ke +2

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Reaksi redoks dibawah ini belum setara

a H2O + I- + MnO4- ---> I2 + Mn2+ + b OH-

Berapakah nilai a dan b

4 dan 8

5 dan 10

6 dan 12

7 dan 14

8 dan 16

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Reaksi redoks dibawah ini belum setara,

a KI + NaClO3 +b H2SO4 ---> c I2 +

d K2SO4 + NaCl + H2O

Berapakah nilai a, b, c dan d

4 - 2 - 2 - 2

4 - 3 - 3 - 3

6 - 2 - 2 - 2

6 - 3 - 3 - 3

6 - 4 - 4 - 4

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Cu2+ + Fe → Fe2+ + Cu Eo Sel = +0,78 V

Cu2+ + Zn → Zn2+ + Cu Eo Sel = +1,1 V

Cu2+ + Pb → Pb2+ + Cu Eo Sel = +0,47 V


Berdasrkan data diatas urutan kekuatan oksidator dari yang terendah ke yang tertinggi ialah....

Cu < Pb < Fe < Zn

Cu < Zn < Fe < Pb

Zn < Fe < Pb < Cu

Fe < Zn < Pb < Cu

Zn < Pb < Fe < Cu

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Cd I Cd2+ II Ag+ I Ag Eo = + 1,20 V

Cd I Cd2+ II Cu2+ I Cu Eo = + 0,74 V

Pb I Pb2+ II Ag+ I Ag Eo = + 0,93 V

Na I Na+ II Pb2+ I Pb Eo = + 2,58 V

Tentukanlah logam mana yang menjadi oksidator terkuat...

Cd

Ag

Cu

Pb

Na

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