On placing an inverted tumbler over a burning candle, the flame extinguishes after some – time . This is because of non –availability of a) oxygen b)water vapour c)carbon dioxide d)wax Answer : a) oxygen...
On a cold winter night , the process sleeping in a room with closed door and windows with coal fire burning inside may die due to the excessive accumulation of a) nitrogen monoxide b) nitrogen dioxide c) carbon dioxide d) carbon monoxide Answer : d) carbon monoxide...
_______ is highly poisonous gas produced as a result of incomplete combustion. a) oxygen b)carbon dioxide c)carbon mono oxide d)soot Answer : c)carbon mono oxide...
The gas causing acid rain in an industrial area is (1) Carbon dioxide (2) Carbon monoxide (3) Sulphur dioxide (4) Methane Answer : Sulphur dioxide...
What are the components responsible for acid rain? (1) Nitrogen monoxide (NO) and Carbon monoxide (CO) (2) Sulphur dioxide (SO2 ) and Nitrogen oxides (NOx ) (3) Carbon dioxide (CO2 ) and Carbon monoxide (CO) (4) Oxides of carbon (COx ) and Oxides of nitrogen (NOx ) Answer : Sulphur dioxide (SO2 ) and Nitrogen oxides (NOx ) ...
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