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प्रश्न
Give reason for the following:
Both CO2 & SO2 turn lime water milky. Moist potassium permanganate paper, helps in distinguishing the two gases.
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उत्तर
SO2 gas moist potassium permanganate paper turns purple to colourless when comes in contact with sulphur dioxide gas where as CO2 gas has no effect.
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संबंधित प्रश्न
Choose the correct alternative.
In combined state, carbon occurs as
Name the following:
Substances whose atoms or molecules are not arranged in a geometrical pattern.
Give reason for the following:
Soda acid and foam types of fire extinguisher are not used for extinguishing electrical fires.
State three ways by which carbon dioxide gas is added into the atmosphere.
Tick the most appropriate answer.
Each molecule of Buckminster fulierene contains 60 atoms of carbon arranged as balls consisting of 12 pentagons and
a. 20 hexagons
b. 30 hexagons
c. 40 hexagons
d. 50 hexagons
FILL IN THE BLANK
.................. are the compounds of hydrogen and carbon only.
What are hydrocarbons ? Name the two different forms of hydrocarbons.
Name of the following compounds :
Elemental carbon undergoes ______ reaction at room temperature.
Assertion (A): Carbon monoxide is a toxic gas of carbon.
Reason (R): smoking is a source of carbon monoxide.
