
Logam Alkali
Authored by Drs. Mt
Chemistry
12th Grade
Used 20+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pernyataan berikut yang benar berkaitan dengan unsur alkali
mudah bereaksi dengan air menghasilkan basa dan gas hidrogen
sifat basa makin ke bawah makin lemah
unsur logam alkali ditemukan di alamm dalam bentuk bebas
unsur logam alkali tidak reaktif
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Pernyataan berikut yang benar berkaitan dengan logam alkali
memiliki bilangan oksidasi +1
memiliki titik leleh rendah
lunak, dapat diiris dengan pisau
bereaksi dengan air menghasilkan gas oksigen
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Unsur alkali memiliki warna nyala yang khas, pernyataan berikut yang benar adalah... .
litium berwarna merah
natrium berwarna kuning
kalium berwarna hijau
Sesium berwarna biru
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Logam alkali bersifat sangat reaktif, hal ini dikarenakan.....
energi ionisasinya tinggi
titik lelehnya rendah
jari-jari atomnya kecil
elektron terluarnya 1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Unsur berikut yang digunakan sebagai pengisi lampu jalan agar dapat menembus kabut adalah.....
Lithium
Natrium
Kalium
Fransium
Cesium
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Urutkan kereaktifan logam alkali berikut bila direaksikan dengan air
Litium > Natrium > Kaliium
Litium < Natrium < Kaliium
Natrium > Kaliium > Litium
Kaliium > Litium > Natrium
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Logam alkali berikut berikut yang digunakan untuk membuat pupuk dan bahan korek api adalah
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