
1.SRT - pisana provjera znanja
Authored by Danijela Leko
Chemistry
9th Grade
Used 2+ times

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30 questions
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1.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Maseni udio bakra u rudama je mali pa se ruda koncentrira procesom koji se zove .......
(1 bod)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mjed je legura: (jedan točan odgovor)
(1 bod)
željeza i ugljika
bakra i cinka
bakra i kositra
bakra i željeza
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Halogeni element koji spriječava nastanak karijesa je: (jedan odgovor je točan)
(1 bod)
fluor
klor
brom
kisik
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kao antiseptik u medicini koristi se: (jedan točan odgovor)
( 1bod)
klor
fluor
jod
brom
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koliko kisika ima u atmosferi? (jedan točan odgovor)
(1 bod)
78%
50%
21%
90%
6.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Agregatno stanje svih halkogenih elemenata (osim kisika) je ___________ .
(1 bod)
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Svojstva elementarnog kisika su: (više točnih odgovora)
(0.5 bodova za svaki točan odgovor)
bezbojan, bez mirisa i okusa
inertan (nereaktivan)
podržava gorenje, ali ne gori
ne gori i ne podržava gorenja
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