SUMATIF AKHIR SEMESTER GANJIL KELAS XII MATA PELAJARAN KIMIA
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Hard
Ida Marantika
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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pernyataan berikut mengenai reaksi reduksi dan oksidasi yang tepat adalah...
Reaksi reduksi adalah reaksi dimana terjadi pelepasan elektron
Reaksi oksidasi adalah suatu reaksi dimana terjadi penerimaan elektron
Reaksi yang diertai dengan terjadinya peningkatan bilangan oksidasi dinamakan reaksi reduksi
Reaksi yang disertai dengan penurunan bilangan oksidasi dinamakan reaksi oksidasi
Suatu reaksi dimana terjadi penggabungan dengan oksigen dinamakan reaksi oksidasi
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bilangan yang menyatakan bannyaknya elektron yang terlibat dalam suatu reaksi dinamakan...
Bilangan oksidasi atau biloks
Bilangan reduksi
Potensial reduksi
Potensial oksidasi
Bilangan Avogadro
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Yang dimaksud dengan reduktor atau pereduksi adalah...
Unsur yang menyebabkan unsur lain mengalami oksidasi
Unsur yang mengalami reduksi
Unsur yang dapat menyebabkan unsur lain mengalami reduksi
Unsur yang kehilangan/melepaskan oksigen
Unsur yang tidak mengalami reaksi
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bilangan oksidasi P dalam Senyawa H3PO4 adalah...
+1
+2
+3
+4
+5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bilangan oksidasi N (nitrogen) paling rendah terdapat pada senyawa...
HNO3
HNO2
N2O
NO
NO2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut ini diberikan lima persamaan reaksi oksidasi dan reduksi yang belum setara. Yang merupakan persamaan reaksi reduksi adalah nomor...
(1) MnO4– → Mn2+
(2) C2O42– → CO2
(3) Mg2+ + 2e- → Mg
(4) C2H4 → C2H6
(5) FeO → Fe2O3
(1), (2), dan (3)
(1), (3), dan (4)
(2), (3), dan (4)
(2), (3), dan (5)
(2), (4), dan (5)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan persamaan reaksi berikut
H2S + HNO2 → S + NO + H2O
Zat yang bertindak sebagai oksidator pada reaksi di atas adalah...
H2S
HNO2
S
NO
H2O
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