
ALKALI (IA)
Authored by Momon Momon
Chemistry
12th Grade
25 Questions

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Di antara basa alkali berikut yang paling kuat adalah….
RbOH
CsOH
NaOH
KOH
LiOH
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut ini urutan energi ionisasi unsur alkali yang benar adalah….
376, 403, 419, 496, 520
450, 520, 420, 403, 378
520, 496, 419, 403, 376
378, 420, 450, 403, 520
520, 378, 403, 420, 450
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika senyawa KNO3 dibakar di atas api maka warna nyala dari Kalium adalah….
ungu
merah
biru
hijau
kuning
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut ini yang merupakan sifat unsur-unsur logam alkali, kecuali….
titik lelehnya dari atas hingga ke bawah semakin kecil
titik didinya dari atas hingga ke bawah semakin kecil
energi ionisasi yang tinggi
potensial elektroda rendah
massa jenis yang rendah
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Urutan yang benar basa unsur alkali dari yang lemah ke yang semakin kuat adalah….
LiOH-KOH-CsOH-RbOH
NaOH-KOH-LiOH-RbOH
NaOH-KOH-RbOH-CsOH
RbOH-CsOH-LiOH-KOH
CsOH-RbOH-KOH-LiOH
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Keteraturan yang tempak pada unsur-unsur golongan IA (alkali) dari atas ke bawah adalah….
kerapatan semakin kecil
titik didih semakin kecil
kekerasan semakin besar
jari-jari logam semakin kecil
jari-jari ionic semakin kecil
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kereaktifan logam alkali disebabkan oleh rendahnya….
afinitas electron
energy ionisasi
sifat kelogaman
titik didih
massa jenis
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