QUIZ ALKALI TANAH
Quiz
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
PKMRSH UNRI
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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
Dibawah ini yang bukan unsur alkali tanah adalah ....
Ba
Be
Sr
Ca
Cr
2.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
Logam alkali tanah jika beraksi dengan air menghasilkan gas H2 kecuali ….
Ca
Be
Sr
Mg
Ba
3.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
Logam magnesium dapat dibuat melalui reaksi ….
elektrolisis lelehan MgCl2
reduksi MgCl2 dengan TiCl2
elektrolisis larutan MgSO4
reduksi MgO dengan karbon
pemanasan MgCO3 sampai suhu 400° C
4.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
Logam-logam alkali dan alkali tanah tidak dapat diperoleh dari larutannya melainkan diperoleh dengan jalan elektrolisis leburannya, karena logam-logam alkali dan alkali tanah mempunyai… .
daya pereduksi kuat
daya pengoksidasi kuat
energi ikatan tinggi
titik lebur tinggi
potensial elektroda besar
5.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
Jika garam dari alkali tanah dites nyala ternyata berwarna merah, maka garam tersebut mengandung logam… .
berilium
magnesium
kalsium
barium
strontium
6.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
Senyawa alkali tanah yang digunakan sebagai obat maag adalah
Be(OH)2
Mg(OH)2
Ba(OH)2
Ca(OH)2
Sr(OH)2
7.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
Unsur logam alkali tanah yang mempunyai jari-jari atom terkecil adalah
Berilium
Stronsium
Radium
Barium
Calsium
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