
Ujian Nasional Kimia SMA 2010/2011
Quiz
•
Chemistry
•
8th Grade
•
Hard
NELSON WADU
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41 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Konfigurasi elektron unsur X dengan nomor atom 24 adalah ....
[Ar] 3d2 4s2
[Ar] 3d5 4s1
[Ar] 3d10 4s2
[Ar]3d4 4s1 4p3
[Ar] 3d8 4s2 4p2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Konfigurasi elektron ion Z3- adalah [Ar] 3d3, dalam sistim periodik unsur Z terletak pada ....
Periode 3 golongan VIA
Periode 3 golongan VIIA
Periode 4 golongan IVB
Periode 4 golongan VIA
Periode 4 golongan VIB
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut ini merupakan data fisik dari senyawa tidak dikenal
Ionik dan ionik
Ionik dan kovalen polar
Kovalen polar dan ionik
Kovalen polar dan kovalen polar
Kovalen polar dan kovalen nono polar
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Atom-atom di alam cenderung berikatan agar tercapai kestabilan. Jika unsur P dengan nomor atom 6 berikatan dengan unsur S dengan nomor atom 8 maka jenis ikatan dan rumus molekul yang terbentuk adalah ....
Ion dengan rumus PS2
Ion dengan rumus PS4
Kovalen dengan rumus PS2
Kovalen dengan rumus PS3
Kovalen dengan rumus P2S3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bila massa atom relative Al=27, S=32,O=16, H=1 maka massa molekul relative dari senyawa Al2(SO4)3 H2O adalah ,….
226
338
370
402
450
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Al(OH)3 + H2SO4 → Al2(SO)3 +H2O. Koefisien dari persamaan reaksi tersebut adalah….
1-2-3-6
1-3-2-6
2-3-1-6
3-2-1-6
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suatu paduan logam (aliase) yang terdiri darin90 % Al( Ar=27) dan 10 % Cu ( Ar=63,5) digunakan untuk menghasilkan gas H2 dengan cara mereaksikannya dengan HCl untuk menghasilkan 6,72 liter gas H2 (STP) maka dibutuhkan paduan logam sebanyak…
5,4 gram
6 gram
6,7 gram
12 gram
21,6 gram
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