ALKALI (IA)

ALKALI (IA)

12th Grade

25 Qs

quiz-placeholder

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ALKALI (IA)

ALKALI (IA)

Assessment

Quiz

Chemistry

12th Grade

Practice Problem

Hard

Created by

Momon Momon

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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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