UJI COBA ASESMEN AKHIR SEMESTER 2 KIMIA KELAS X

Quiz
•
Chemistry
•
11th Grade
•
Hard
Erizon Erizon
Used 4+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Pada reaksi berikut ini:
2Zn + 4 HC → 2ZnCl2 + 2H2
Perubahan bilangan oksidasi atom Zn adalah ....
turun 1
naik 3
naik 2
turun 2
naik 4
2.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Pada reaksi berikut ini:
2Fe + 6HCl → 2FeCl3 + 3H2
Perubahan bilangan oksidasi atom Fe adalah ....
turun 2
naik 2
naik 1
turun 3
naik 3
3.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Dalam suatu reaksi pembentukkan senyawa besi(II)belerang, diketahui perbandingan besi dan belerang adalah 7:4.
Besi yang harus direaksikan dengan 20 gram belerang agar dihasilkan senyawa besi(II)belerang adalah ....
56 gram
35 gram
28 gram
44 gram
21 gram
4.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Dalam reaksi pembentukan senyawa natrium klorida, diketahui perbandingan natrium dan klorin adalah 1:1.
Natrium yang harus direaksikan dengan 35 gram klorin agar dihasilkan senyawa natrium klorida adalah ....
23 gram
35 gram
11.5 gram
17 gram
46 gram
5.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Pada senyawa Fe2S3 (Ar Fe = 56; S = 32) perbandingan massa besi dan belerang yang menyusun senyawa Fe2S3 adalah ....
7 : 6
7 : 7
7 : 8
8 : 7
6 : 7
6.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
DIketahui perbanding kalsium dan fluorin dalam senyawa CaF2 adalah 20 : 19. Jika terdapat 80 gram kalsium bereaksi dengan fluorin berlebihan, maka massa CaF2 yang dihasilkan adalah ... gram
39
45
78
87
156
7.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Perhatikan persamaan reaksi berikut : a H3AsO3 + b H2S → c H2O + d As2S3.
Jika disetarakan harga a, b, c dan d berturut- turut adalah ...
1-3-2-6
2-3-6-1
3-1-2-6
1-2-3-6
6-3-2-1
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