Science - Elements and Metals

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Quiz by FletchFFletch
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Last updated: April 30, 2017
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First submittedApril 30, 2017
Times taken128
Average score54.5%
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Hint
Answer
Galvanized iron sheets have a coating of...
zinc
Inert gas which is substituted for nitrogen in the air used by deep sea divers for breating
helium
Gas usually filled in the electric bulb is
nitrogen
Permanent hardness in water may be removed by the addition of
sodium carbonate
Soda water contains this gas
carbon dioxide
The most important ore of aluminum is
bauxite
What is laughing gas?
nitrous oxide
Diamond is an allotropic form of
carbon
What is the lightest metal?
lithium
In fireworks the green flame is produced by
barium
Marsh gas is
methane
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