
2D- Kuis Pertemuan 6
Authored by Hendri Faisal
Chemistry
University
Used 48+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Yang termasuk kation golongan sub arsenik adalah
Merkuriu (II)
Timbel(II)
Bismut(III)
Tembaga(II)
Timah(II)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pereaksi yang harus ditambahkan sebelum penambahan H2S pada pengendapan kation golongan tembaga arsenik adalah
HCl encer
HNO3 (p)
NaOH
H2SO4
HCl pekat
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Endapan yang terjadi jika Cu2+ direaksikan dengan NaOH adalah
Endapan biru Cu(OH)2
Endapan biru Cu2OH
Endapan biru CuOH
Endapan biru Cu2O
Endapan biru CuO
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pernyataan yang benar tentang ion tembaga, Cu2+ adalah
Mudah larut dalam HCl dan asam sulfat encer
Dengan Hidrogen sulfida terbentuk endapan coklat
Tidak bereaksi dengan amonia
Membentuk endapan putih dengan NaOH
Dengan hidrogen sulfida membentuk endapan CuS
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Hasil yang terjadi jika arsenik(III) jika direaksikan dengan perak nitrat adalah
Endapan kuning perak arsenit
Endapan kuning perak arsenat
Endpan merah kecoklatan perak arsenat
Endapan merah kecoklatan perak arsenit
Endapan merah arsenit
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pereaksi yang dapat dipakai untuk memisahkan Bismut dari tembaga dan kadmium adalah
NH3 dalam air
HCl
HNO3
H2SO4
NaOH
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reagensia yang dapat dipakai untuk memisahkan Cu2+ dan Cd2+ dalam suatu larutan adalah
(NH4)2S
KCN
CH3COOH
K4Fe(CN)6
NH4OH
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