UH 1 Kls XI sem 2
Quiz
•
Chemistry
•
12th Grade - Professional Development
•
Practice Problem
•
Hard
fauzan tamher
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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
dalam percobaan asam-basa yang dilakukan oleh lisa dan kawan-kawan, didapati perubahan kertas lakmus biru dicelupkan ke larutan berubah menjadi merah. sifat larutan pada percobaan tersebut adalah...
asam pH=7
asam ph<7
basa pH>7
asam pH>7
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
desi, sahrul dan fita melakukan uji asam basa pada beberapa tumbuhan. didapati hasil percobaan mereka yaitu :
larutan 1, indikator berwarna merah menjadi kuning
larutan 2, indikator berwana merah menjadi hijau
larutan 3, indikator berwarna ungu menjadi biru
larutan 4, indikator berwarna biru menjadi merah
kesimpulan sifat perubahan warna indikator secara berturut-turut adalah...
asam-basa-basa-asam
basa-asam-basa-asam
asam-asam-basa-asam
asam dan basa
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
cermati beberapa sifat larutan berikut.
1) bersifat korosif
2) menghasilkan ion OH- dalam air
3) tidak dapat merubah warna kertas lakmus biru menjadi merah
4) berasa masam
5) Brsifat kaustik
sifat larutan basa ditunjukkan oleh angka...
1),2) dan 3
1),3) dan 4)
2),3) dan 5
3),4) dan 5
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
diantara senyawa kimia berikut yang bersifat asam menurut Arrhenius adalah...
NH3
NH4Cl
H2CO3
Ba(OH)2
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
diketahui persamaan reaksi Bronsted-Lowry berikut.
HNO3 + H2O → H3O+ + NO3-
pasangan asam basa konjugasi dalam reaksi tersebut adalah...
H3O+ dan NO3-
HNO3 dan H3O+
H3O+ dan H2O
H2O dan HNO3
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
diantara molekul berikut yang tidak termasuk dalam asam lewis adalah...
B2H6
BF3
Fe2+
NH3
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
nilai pH yang dihasilkan oleh larutan HCl 0,01M adalah...
2-log10
10-log 2
2
4
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