Purity
Authored by Eki Maulana
Chemistry
8th Grade
Used 271+ times
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6 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
which of the following is not a pure substance?
sea water
salt
water
24-carat gold
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
What is the percentage purity of Gold in 18-carat Gold?
25%
50%
75%
100%
Answer explanation
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
The silver ring has the mark 925 on it. What is the percentage of purity of Silver in the ring?
90%
92.5%
95%
925%
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Diamonds are made of the element ....
Gold
Silver
Carbon
Boron
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Blue Diamond is a diamond which has some ..... element on it.
Boron
Nitrogen
Nickel
Silver
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Which compound mainly present in the salt coming from sea water?
sodium chloride
magnesium chloride
sodium sulfate
calcium chloride
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