Kovy 2
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Medium
Jitka Dvořáková
Used 4+ times
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14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dural je slitina
mědi a cínu
mědi a zinku
hliníku a hořčíku
rtuťi a stříbra
olova a cínu
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Železo se používá na :
odlehčené konstrukce
do akumulátorů
ve stavebnictví
na pokovování
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Ocel je chemicky hlavně
olovo
měď
platina
železo
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jak se nazývá šedobílý kov, který se používá k povrchové ochraně železa proti korozi, k výrobě baterií a slitiny mosazi?
zinek
cín
chrom
olovo
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jak se nazývá kov, který je součástí 10,- ; 20,- , okapů a vodičů a má červenohnědou barvu?
platina
zlato
železo
měď
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jak se nazývá kov, který je lehký, nemagnetický a je součástí CD, DVD a alobalu?
stříbro
hliník
hořčík
chrom
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Důležitým prvkem v katalyzátorech automobilů je
platina
olovo
vápník
sodík
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