PPHB KIMIA KELAS XI SEMESTER 2
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Medium
Nina Kurniasih
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 6 pts
Asam cuka (CH3COOH) termasuk senyawa asam. Menurut Arhenius, asam cuka mempunyai sifat asam karena …
memiliki atom hidrogen
dalam air melepaskan ion H+
dalam air melepaskan ion OH–
dapat menerima pasangan elektron
dapat memberi proton kepada molekul air
2.
MULTIPLE CHOICE QUESTION
3 mins • 6 pts
Diketahui reaksi:
H2S + H2O --> H3O+ + HS–
HS– + H2O --> H3O+ + S2–
Spesi yang bersifat amfiprotik adalah …
H2S
H2O
H3O+
HS–
S2–
3.
MULTIPLE CHOICE QUESTION
2 mins • 6 pts
Pada reaksi: Ag+(aq) + 2NH3(aq) --> Ag(NH3)2+(aq)
Menurut teori Lewis ion Ag+ berperan sebagai asam, sebab …
ion Ag+ menerima pasangan elektron dari NH3
ion Ag+ memberi pasangan elektron kepada NH3
ion Ag+ menerima OH– dari pelarut air
ion Ag+ memberi proton kepada NH3
ion Ag+ menerima proton dari NH3
4.
MULTIPLE CHOICE QUESTION
2 mins • 6 pts
Suatu persamaan hidrolisis sebagai berikut :
Z-(aq) + H2O(l) ↔ HZ+(aq)+OH-(aq)
Garam yang mengalami hidrolisis seperti di atas adalah ….
NH4Cl
NH4CN
CaCl2
Na2SO4
KCN
5.
MULTIPLE CHOICE QUESTION
3 mins • 6 pts
Diketahui trayek pH berbagai indikator sebagai berikut,
Warna ketiga indikator itu dalam larutan CH3COOH 0,01 M ( Ka = 1 x 10-5 ) adalah….
Tak berwarna, kuning, merah
Tak berwarna, merah, kuning
Tak berwarna, merah, hijau
Tak berwarna, jingga, kuning
merah, kuning, hijau
6.
MULTIPLE CHOICE QUESTION
2 mins • 6 pts
Larutan garam yang akan memerahkan kertas lakmus merah adalah...
Kalium Nitrat
Amonium Sulfat
Barium Asetat
Kalium Format
Amonium Asetat
7.
MULTIPLE CHOICE QUESTION
2 mins • 6 pts
Diketahui beberapa larutan asam :
Jika larutan tersebut konsentrasinya sama, yang memiliki [H+] terbesar adalah …
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