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WorksheetsGeneral Science Quiz
Total questions: 10
Worksheet time: 5mins
Brass get discoloured in air because of the presence of which of the following gases in air?
Oxygen
Hydrogen Sulphide
Carbon Dioxide
Nitrogen
Which of the following is a non-metal that remains liquid at room temperature?
Phosphorous
Bromine
Chlorine
Helium
Chlorophyll is a naturally occurring chelate compound in which central metal is?
Copper
Magnesium
Iron
Calcium
Which of the following is used in pencils?
Graphite
Silicon
Charcoal
Phosphorous
Which of the following metals from an amalgam with other metals ?
Tin
Mercury
Lead
Zinc
Chemical formula for water is ?
NaAlO2
H2O
Al2O3
CaSiO3
The gas usually filled in the electric bulb is ?
Nitrogen
Hydrogen
Carbon Dioxide
Oxygen
Washing soda is the common name for ?
Sodium Carbonate
Calcium Bicarbonate
Sodium Bicarbonate
Calcium Carbonate
Which of the gas is not known as green house gas ?
Methane
Nitrous Oxide
Carbon Dioxide
Hydrogen
The hardest substance available on earth is ?
Gold
Iron
Diamond
Platinum
