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WorksheetsChemistry quiz [Subhradipto Acharjee]
Total questions: 20
Worksheet time: 12mins
What is the most important component of life?
Water
Food
Air
House
Co2 + H2O ---light and chlorophyll-----> C6H12O6 + O2
Respiration
Rusting
Combustion
Photosynthesis
By which method hydrated iron oxide is made ( Block Letters)
(a)
Which one is a wasteful process? (Block Letters)(Only the process)
(a)
One similarities between respiration and burning
Take place at body temperature
CO2 and Water vapour is formed
The number of atoms in a molecule of an element is called ________.
Formulae
Polyatomic
Atomicity
Triatomic
What is the formulae of Magnesium oxide, Iron (II) oxide,
Hydrogen sulphide (Write in this order only)
(a)
What is the ratio of H2 and O2? (Give one-one gap)
(a)
Sea water is fit for______
(Any two)
Boiling
Drinking
Storage
Washing
The loss of O2 from H2O in water bodies is called (a) . (Block letters)
The short form of purification of water for drinking is LFACS
True
Treue
False
Flase
What is this picture
A cross section of a sand
Purification of water by water works
Anamolous expansion of property
How much litres of water per day a person needs to drink? (Write the unit in full form)
(a)
Which gas contributed 14% to global warming?
Co2
Methane
CFC
Nitrous oxide
What is the process for
Burning
Respiration
Fuel
Photosynthesis
Is air a matter?
True
False
Which gas is in the maximum percentage in inert gases(First letter block letter)
(a)
In which year air is proved that it is not an element?
(a)
Hilly places have pollutant rich air.
(Write the opposite of the correct answer)
True
False
Which was the first element formed shortly after the Big-Bang?
Lithium
Carbon
Hydrogen
Helium
