
Fosforas 10 klasė
Authored by Jelena jelenasuskevic@rambler.ru
Chemistry
10th Grade
Used 13+ times

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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fosforo simbolis
Fe
F
N
P
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kurioje grupėje randasi fosforas?
XV
III
V
Vi
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fosforo oksidacijos laipsniai yra......
+1 ir +3
-3 +3 +5
-3 +1 + 3
- 3 + 3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kokios alotropinės atmainos neturi fosforas?
Baltasis fosforas
jodasis fosforas
raudonasis fosforas
violetinis fosforas
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fosforo molekulė yra ............?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fosforas nereaguoja su ..........
siera
vandeniliu
chloru
ličiu
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fosforas pramonėjė gaunamas iš ...........
CaSiO3
Ca3(PO4)2
Ca3P2
Na3PO4
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