
PH alkali dan alkali tanah
Quiz
•
Chemistry
•
3rd Grade
•
Practice Problem
•
Medium
Servi FY
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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Jari-jari atom logam alkali yang terbesar adalah...
K
Cs
Li
Na
Rb
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Unsur golongan alkali yang bersifat radioaktif adalah...
Cs
Na
K
Fr
Rb
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Jika seyawa KNO3 dibakar diatas nyala api maka warna nyala dari kalium adalah...
Ungu
merah
biru
hijau
Kuning
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
diantara golongan alkali tanah yang bersifat radioaktif adalah...
magnesium
berilium
stronsium
barium
radium
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Logam alkali dan alkali tanah hanya dapat diperoleh dengan jalan elektrolisis leburan garamnya dan bukan dari larutannya karena...
Potensial elektrode logam alkali dan alkali tanah lebih besar daripada air
Potensial elektrode logam alkali dan alkali tanah lebih kecil daripada air
air lebih mudah dioksidasi daripada logam alkali dan alkali tanah
logam alkali dan alkali tanah sangan reaktif sehingga tereduksi oleh air di katode
logam alkali dan alkali tanah adalah pengoksidasi kuat
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Unsur dibawah ini yang mempunyai jari-jari terkecil adalah...
Sr
Mg
Be
Ca
Ba
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Unsur alkali tanah yang energi ionisasinya paling kecil adalah...
Ba
Sr
Be
Mg
Ca
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