Unsur kimia VIIA

Quiz
•
Science
•
12th Grade
•
Easy
Adinda Nabila
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Manakah nomor atom yang benar sesuai dengan unsurnya?
a.35
b.17
c.35
d.9
2.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Manakah kelimpahan yang benar dari unsur Iodin?
Diperoleh bisa menggunakan 3 cara yaitu proses diacrom (oksidasi), elektrolisis larutan NaCl menggunakan diagfragma, elektrolisis larutan NaCl
Diperoleh dari proses elektrolisis garam pekat (brine)
Dperoleh dari merekasikan garam bromin dengan zat pengoksidasi
Diperoleh melalui metode Moisson yaitu proses elektrolisis garam Kalium Hydrogen Fluorida(KHF2) dilarutkan dalam HF cair
3.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Reaksi halogen dengan air yang benar adalah...
2F2(g) + 2H2O(l) —> 4HF(aq) + O2(g)
X2(g) + H2(g) —> 2HX(g)
4F2(g) + 2H2O(l) —> 2HF(aq) +O2(g)
H2(g) + X2(g) —> 2HX (g)
4.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Manakah pernyataan berikut yang benar sesuai dengan gambar diatas..
Unsur halogen selalu mempunyai bilangan oksidasi -1, kecuali Br yang selalu univalent
Unsur halogen selalu mempunyai bilangan oksidasi -1,kecuali Iodin yang selalu univalent
Titik leleh dan tingkat kerapatan semakin menurun dari kanan ke kiri
Titik leleh dan tingkat kerapatan semua unsur sama dari kanan ke kiri
5.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Manakah pasangan sifat dengan unsur yang benar?
1b, 2c, 3a, 4d
1a, 2b, 3c, 4d
1b, 2c, 3d, 4a
1c, 2b, 3a, 4d
6.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Reaksi halogen dengan hidrogen yang benar adalah…
2F2(g) + 2H2O(l) —> 4HF(aq) + O2(g)
F2(g) + Cu(s) —> CuF2(g)
Cl2(g) + CH4(g) —> CH3Cl(g) + HCl(aq)
X2(g) + H2(g) —> 2HX(g)
7.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Energi ikatan F2 sangat rendah (158 kj mol-1) menyebabkan sangat reaktif. Apakah benar atau salah?
Benar
Salah
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