
Vesinikperoksiid
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Chemistry
11th Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mis on vesinikperoksiidi keemiline valem?
H₂O
H₂O₂
HO₂
H₂
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kuidas saadakse vesinikperoksiidi tööstuses?
Antrakinooniprotsessiga
Elektrolüüsi teel
Keetmise teel
Otseselt hapnikust ja veest
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Milline omadus teeb vesinikperoksiidi heaks puhastusvahendiks?
Magus lõhn
Happeline reaktsioon
Tugevad oksüdeerivad omadused
Kõrge keemistemperatuur
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mis juhtub vesinikperoksiidiga valguse toimel?
Ta keeb
Ta muutub tahkeks
Ta laguneb veeks ja hapnikuks
Ta aurustub
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Miks ei ole soovitatav kasutada vesinikperoksiidi haavade puhastamiseks?
See põhjustab infektsiooni
See on liiga kallis
See aeglustab paranemist
See värvib naha punaseks
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Millise kontsentratsiooniga vesinikperoksiidi kasutatakse joogivee puhastamiseks?
35%
10–15%
0,05–0,5%
5%
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kus kasutatakse 70–98% vesinikperoksiidi?
Juuksevärvides
Hammaste valgendamisel
Raketikütusena
Akvaariumites
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