Specia chimică NaClO este produsul unei reacții dintre clor și:

REACȚII. REACȚII DE OXIDO-REDUCERE- PARTEA I

Quiz
•
Science
•
9th Grade
•
Hard
IRINA MARIN
Used 5+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
acid clorhidric
hidroxid de sodiu
apă
sodiu
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reacția dintre sodiu și clor are loc cu transfer de electroni
A
F
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se consideră schema de transformări chimice:
Al + O2 → A
B + O2 → Na2O2
Despre compușii notați cu litere în schema de transformări este adevărat că:
are caracter metalic mai pronunțat decât B
B se poate păstra în aer liber
A formează la suprafața metalului un strat aderent, protector
A este un oxid acid.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Într-o reacţie redox, specia chimică cu caracter oxidant cedează electron
A
F
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Şirul care conţine elementele chimice aranjate în ordinea creşterii caracterului nemetalic este:
Cl, Br, I
Br, Cl, I
I, Br, Cl
I, Cl, Br
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nu este o sare a acidului clorhidric:
NaCl
NaOCl
NH4Cl
FeCl3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
În transformarea: A + NaBr → B + Br2
(A) este iodul
bromura de sodiu are rol de agent oxidant
(B) este clorura de sodiu
bromul își modifică numărul de oxidare de la +1 la 0
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