
PAT KELAS XI-KIMIA
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Moral Science, Chemistry, Science
11th Grade
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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Diantara pernyataan berikut, defenisi asam menurut Arhenius adalah…….
Asam memiliki atom hydrogen
Asam memiliki atom oksigen
Asam melepaskan gugus hidroksil
Asam adalah donor proton
Asam melepaskan ion hidgrogen
Answer explanation
Asam melepaskan ion hidgrogen
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Diketahui reaksi :HCOOH + HNO2 ↔ HCOOH2+ + NO2-. Pasangan asam basa konjugatnya adalah….
HNO2 dan NO2-
HCOOH dan NO2-
HCOOH dan HNO2
NO2- dan HCOOH2
HNO2 dan HCOOH2
Answer explanation
Pasangan asam basa memiliki perbedaan 1 atom H
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Berdasarkan pengujian sampel air limbah diperoleh data sebagai berikut:
Harga pH sampel air limbah X adalah …..
6,3 ≤ pH ≤ 8,3
4,2 ≤ pH ≤ 6,3
pH ≤ 8,3
6,3 ≤ pH ≤ 10
pH ≤ 6,3
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Besarnya pH larutan 0,74 gram Ca(OH)2 (Ar Ca = 40; O=16; H = 1) dalam 500 ml larutan adalah …..
2- log 4
2 + log 4
11 + log 4
12 - log 4
12 + log 4
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Garam berikut yang dimasukkan dalam air akan mengubah warna lakmus merah menjadi biru adalah…
Ammonium asetat
Natrium sulfat
Kalium Asetat
Natrium klorida
Ammonium klorida
Answer explanation
memerahkan lakmus biru berati bersiat basa
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Berikut ini larutan yang terhidrolisis sebagian jika dilarutkan dalam air adalah ….
NaCl
Na2SO4
K2SO4
(NH4)SO4
NH4CN
Answer explanation
salah satu ionnya berasal dari asam lemah atau basa lemah
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Persamaan hidrolisis suatu senyawa adalah sebagai berikut:
CH3COO-(aq) + H2O(l) ↔ CH3COOH(aq) + OH-(aq)
Garam yang mengalami hidrolisis seperti persamaan diatas adalah ….
NH4NO2
CH3COONa
NH4CH3COO
NH4CN
(NH4)SO4
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