Pernyataan yang benar mengenai sifat – sifat unsur dalam satu golongan dari atas ke bawah mempunyai kecenderungan ....
TRY OUT KIMIA

Quiz
•
Chemistry
•
12th Grade
•
Hard
YULIUS ALWER
Used 20+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Jari – jari atom berkurang
Keelektromagnetifan jam bertambah
Afivitas elektron bertambah
Energi ionisasi berkurang
Sifat logam berkurang
2.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Magnalium adalah logam paduan yang terdiri dari ....
Mn dan Fe
Mn dan Cu
Mg dan Al
Mg dan Zn
Mg dan Cr
3.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Pasangan unsur gas mulia yang senyawanya telah disintesis adalah ....
Xenon dan Argon
Xenon dan Krypton
Helium dan Xenon
Xenon dan Xenon
Helium dan Argon
4.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Alumunium banyak dipakai untuk membuat alat – alat rumah tangga, sebab alumunium merupakan logam yang ....
Lunak dan mengkilap
Aktif dan bersifat magnet
Ringan dan tahan korosi
Rapuh dan mudah didapat
Sangat keras dan aktif
5.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Unsur periode ketiga yang bersifat pereduksi paling kuat adalah ....
Na
Ce
Mg
Al
Si
6.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Perhatikan keterangan berikut ini :
Hf CH 4 = - 84 kj/mol
Hf CO 2 = - 394 kj/mol
Hf H 2 O = - 285 kj/mol
Kalor dari pembakaran gas CH 4 adalah ....
+ 79,4 kj/mol
+ 794 kj/mol
– 794 kj/mol
-79,4 kj/mol
+ 884 kj/mol
7.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Sebagai bahan bakar pertamax memiliki angka oktan 92 yang berarti komposisinya terdiri dari ....
92% n – oktana dan 8% keptana
92% n – oktana dan 20% keptana
92% n – oktana dan 20% isooktana
92% isooktana dan 20% n-oktana
92% n heksana dan 20% isooktana
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