When Santosh mixed two substances a gas was evolved. He passed that gas through lime water and it turned milky in appearance. Name the gas evolved along with its molecular formula.
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The gas which was evolved is
Carbon-dioxide .
It's molecular formula is CO₂ .
Calcium Hydroxide [Ca(OH)₂] is known as 'Lime water'.
When Santosh passed Carbon-dioxide gas through Calcium Hydroxide ,white coloured Calcium Carbonate [CaCO₃] and water [H₂O] are formed . The white coloured Calcium Carbonate in water gives the solution a milky appearance.
The balanced chemical equation, for the reaction is :-
Ca(OH)₂ + CO₂ → CaCO₃ + H₂O
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Some Extra Information:-
In the above reaction :-
• Ca(OH)₂ is a base.
• CO₂ is an acid [acidic gas]
• CaCO₃ is a salt.
• H₂O is water.
Thus, we can infer that it is a neutralization reaction as an acid and base are reacting to form salt and water.
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(i did for the 50 points XD)
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