UNSUR LOGAM ALKALI
Quiz
•
Chemistry
•
12th Grade - University
•
Medium
Sri Purwanta
Used 26+ times
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40 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Berikut merupakan sifat -sifat logam alkali, kecuali ....
merupakan unsur yang sangat reaktif
terdapat di alam dalam keadaan bebas
dibuat dengan cara elektrolisis
ionnya bermuatan positif satu
senyawa-senyawanya mudah larut dalam air
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Logam natrium biasanya dibuat dengan cara
elektrolisis larutan NaC1
reduksi Na2O dengan LiAlH2
reaksi NaOH dengan logam Ca
penyulingan garam rangkap Na2CO3.NaHCO3.2H2O
elektrolisis leburan NaC1
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Unsur berikut yang bersifat radioaktif adalah
Na
Fr
Cs
Li
K
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Warna nyala logam merah tua, kuning, ungu berturu-turut berasal dari logam ....
Li, Na, K
Li,K,Na
Na, Li, K
Na, K, Li
K, Li, Na
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Reaksi litium dengan oksigen akan membentuk
Li2O2
LiO2
LiO
Li2O
Li2O3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pernyataan yang tepat tentang cara memperoleh logam alkali adalah
reduksi garam kloridanya
oksidasi garam kloridanya
elektrolisis leburan garam kloridanya
elektrolisis larutan garam kloridanya
elektrolisis larutan garam hidroksidanya
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pada korek api mengandung senyawa kalium
hipoklorit
perklorat
klorit
nitrat
klorat
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