
POST TEST 2
Authored by Nugroho Putra
Chemistry
11th Grade
Used 110+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A
B
C
D
E
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A
B
C
D
E
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
a. (1) dan (2)
b. (2) dan (3)
c. (2) dan (4)
d. (3) dan (4)
e. (3) dan (5)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berdasarkan wacana tersebut, pengertian adsorpsi yang tepat dalam proses bleaching miyak goreng menggunakan bentonit adalah ....
pembentukan endapan molekul pengotor minyak goreng di dalam rongga kristal bentonit
pembentukan koloid liofil yang dapat mengendapkan kotoran
penggumpalan partikel bentonit akibat interaksi dengan zat pengotor pada minyak goreng
penyerapan partikel pengotor minyak goreng pada permukaan bentonit, sehingga warna minyak menjadi lebih terang
reaksi oksidasi antara ion Al3+ pada permukaan bentonit dengan partikel pengotor sehingga menghasilkan endapan
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Koagulasi koloid dapat terjadi jika :
1) Koloid dipanaskan
2) Mencampurkan dua macam koloid
3) Ditambahkan zat elektrolit
4) Partikel koloid didialisis
Pernyataan yang benar adalah nomor ….
1, 2, dan 3
1 dan 3
2 dan 4
4
Semua benar
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Beberapa data Ksp dari senyawa garam berikut:
(1) AgCN = 1,2 x 10-16;
(2) AgOH = 1,2 x 10-12;
(3) AgIO3 = 1 x 10-12; dan
(4) AgBr = 5 x 10-13
Urutan kelarutan senyawa tersebut dari yang besar ke kecil adalah ....
a. (1), (4), (3), dan (2)
b. (2), (3), (4), dan (1)
c. (3), (4), (2), dan (1)
d. (3), (2), (1), dan (4)
e. (4), (2), (1), dan (3)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika kelarutan Ca(OH)2 = 5 x 10-2 mol/L, maka larutan jenuh Ca(OH)2 mempunyai pH sebesar ....
1
2 – log 5
5 – log 2
12 + log 5
13
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