Correct Questions: 0 | Wrong Questions: 0 | Total Score: 0 Points

Bromine is a

Colourless gas
Black solid
Highly inflammable gas
Red liquid


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The average salinity of sea water is

0.035
0.045
0.025
0.015


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Galvanised iron sheets are coated with

Zinc
Iron
Copper
Chromium


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The chemical added to odourless LPG gas for imparting a detectable smell to it is

Sulphur
Methane
Carbon di oxide
Argon


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______ is main constituent of Soda water.

Citric acid
lactic acid
Carbon di oxide
Oxygen


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Actinides are the elements with atomic numbers from

68 to 88
104 to 110
22 to 35
89 to 103


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The green flame is fireworks is produced because

Chlorine
Barium
Washing soda
Bleaching powder


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Marsh gas contains

Propane
Butane
Methane
Ethane


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What are the main constituents of LPG

Methane, ethane and nonane
Methane, butane and propane
Ethane, hexane and propane
Methane, ethane and hexane


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Pearls are made up from

Calcium carbonate and ammonium chloride
Calcium carbonate and conchiolin
Calcium carbonate and aragonite
Calcium carbonate and magnesium carbonate


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