hapus

hapus

11th Grade

77 Qs

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hapus

hapus

Assessment

Quiz

Health Sciences

11th Grade

Practice Problem

Hard

Created by

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77 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

1. . Nilai bilangan okidasi dari Cr didalam K2CrO4 adalah . . .

a. 4
b. 5
c. 6
d. 7
e. 8

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

2. Nilai bilangan okidasi dari S didalam Na2SO3 adalah . . .

a. 4
b. 5
c. 6
d. 7
e. 8

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

3. Reaksi Redoks ,Yang berperan sebagai oksidator pada reaksi di atas adalah . . .

a. NaI
b. H2SO4
c. Mn2+
d. I–
e. MnO2

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

4. Diketahui reaksi :, Jika reaksi diatas disetarakan makan koefisien a, b, dan c berturut-turut adalah . . .

a. 4, 1, 1
b. 4, 1, 2
c. 4, 1, 3
d. 4, 1, 4
e. 4, 1, 5

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

5. Diantara reaksi-reaksi dibawah ini yang merupakan reaksi redoks adalah . . .

a. AgNO3 (aq) + NaCl (aq) → AgCl (s) + NaNO3 (Aq)
b. 2KI (aq) + Cl2 (aq) → I2 (s) + 2KCI (aq)
c. NH3 (aq) + H2O (l) → NH4+ (aq) + OH– (aq)
d. NaOH (aq) + CH3COOH (aq) → CH3COONa (aq) + H2O (l)
e. Al2O3 (s) + 2NaOH (aq) → 2NaAlO2 (aq) + H2O (l)

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

6. Diketahui reaksi :,...Jika reaksi tersebut disetarakan maka nilai koefisien a, b dan c adalah . . .

a. 8, 1, 2
b. 8, 2, 1
c. 16, 1, 8
d. 16, 2, 2
e. 8, 1, 2

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

7. Bilangan oksidasi fosfor paling rendah terdapat pada senyawa . . . .

a. PH4Br
b. POBr3
c. PF3
d. PCl5
e. Ca(PO4)2

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