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प्रश्न
‘When carbon dioxide is bubbled into lime water, the lime water turns milky and when bubbled in excess the milkiness disappears’. Give balanced equations to support the statement.
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उत्तर
\[\ce{\underset{\text{Lime water}}{Ca[OH]2} + CO2 ->\underset{\text{(Insoluable) milky}}{CaCO3↓} +H2O}\]
When CO2 is passed in excess, milkiness disappears due to formation of bicarbonate which is soluble in water.
CaCO3 + H2O + CO2 → Ca[HCO3]2
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संबंधित प्रश्न
What happens when carbon dioxide is passed through lime water first in small amounts and then in excess ?
Carbon monoxide burns in air with a ______ flame to form carbon dioxide.
How is carbon monoxide gas formed?
Why is carbon monoxide called silent killer ?
Explain the reducing action of carbon monoxide.
Write two remedies for carbon monoxide poisoning.
FILL IN THE BLANK
Carbon when heated in limited supply of air forms..................
Give reason why carbon monoxide is considered a highly poisonous gas. State why it is dangerous to be in the vicinity of smokers.
Convert carbon monoxide to carbon dioxide using two different methods.
Give a balanced equation for the following conversion: [In one or two steps]
Lime water [soln. of calcium hydroxide] to calcium bicarbonate.
