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प्रश्न
Give a balanced equation for the following conversion: [In one or two steps]
Lime water [soln. of calcium hydroxide] to calcium bicarbonate.
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उत्तर
Lime water to calcium bicarbonate
When CO2 is passed it turns milky.
Step I: \[\ce{Ca[OH]2 + CO2 -> \underset{\text{Cal.carbonate(insoluble)}}{CaCO3↓} + H2O}\]
Step II: On passing excess of CO2, soluble HCO3 is formed and miliness disappears.
CaCO3 + H2O + CO2 → Ca[HCO3]2
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संबंधित प्रश्न
Write the balanced chemical equation for the above reaction.
What happens when carbon dioxide is passed through lime water first in small amounts and then in excess ?
Fill in the blank
....................... is formed when carbon is burnt in a limited supply of air or oxygen.
Why is carbon monoxide called silent killer ?
‘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.
Give reason why carbon monoxide is considered a highly poisonous gas. State why it is dangerous to be in the vicinity of smokers.
State how carbon monoxide finds application in the metallurgy of iron. [Give balanced equations for the same]
State how carbon monoxide finds application in preparation of an alcohol. [Give balanced equations for the same]
Select the appropeiate option of the following statement:
A compound which finds use for a victim of carbon monoxide poisoning.
Give reason for the following:
Lime water finds application for testing both carbon dioxide & carbon monoxide gas individually.
