Pengaratan besi
Authored by NG YOOK CHIN
Chemistry
1st - 5th Grade
Used 3+ times
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10 questions
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1.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
Pengaratan besi berlaku akibat kehadiran _________________.
air
minyak
oksigen
hidrogen
2.
FILL IN THE BLANK QUESTION
20 sec • 1 pt
Pengaratan besi ialah tindak balas _____.
3.
FILL IN THE BLANK QUESTION
20 sec • 1 pt
Oksigen bertindak sebagai agen ________________.
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Logam dioksidakan secara spontan apabila atom logam membebaskan elektron membentuk ion logam. Apakah yang dimaksudkan oleh pernyataan di atas?
penyesaran logam
kakisan logam
pengaratan besi
tindak balas redoks
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Secara umumnya, semakin elektropositif suatu logam, semakin mudah logam terkakis.
Jadi, kakisan logam kuprum lebih cepat daripada logam zink.
Benar
Palsu
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Tabung uji yang manakah paku besinya tidak berkarat?
I
II
III
IV
7.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Fungsi larutan kalium heksasianoferat(III) adalah untuk mengesan kehadiran ion ________________.
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