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Uses of Calcium Carbonate

Which of the ...

Question

Which of the following can dissolve limestone ?

C O_{2} + H_{2} O

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N a O H_{2} + H_{2} O

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N H_{3} + H_{2} O

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None of these

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Solution

The correct option is A $C O_{2} + H_{2} O$
Limestone (calcium carbonate) dissolves in mixture of carbon dioxide and water to form calcium hydrogen carbonate.
$C a C O_{3} (s) + C O_{2} (g) + H_{2} O (l) \to C a (H C O_{3})_{2} (a q)$

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Similar questions

N a C l + H_{2} O

C O_{2} + N H_{3}

\to

N H_{4} C l + X

M n O_{2} + H C l \to M n C l_{2} + C l_{2} + H_{2} O

N H_{4} C l + C a (O H)_{2} \to N H_{3} + C a C l_{2} + H_{2} O

B a C l_{2} + A l_{2} (S O_{4})_{3} \to B a S O_{4} + A l C l_{3}

N a A l O_{2} + H_{2} O + C O_{2} \to A l H_{3} + N a_{2} C O_{3}

N H_{3} + O_{2} \to N O + H_{2} O

Z n + H N O_{3} \to Z n (N O_{3})_{2} + N O_{2} + H_{2} O

H_{2} S + O_{2} \to H_{2} O + S O_{2}

P b O + C \to P b + C O_{2}

B a C l_{2} + H_{2} S O_{4} \to B a S O_{4} + H C l

C H_{4} + O_{2} \to C O_{2} + H_{2} O

$C O_{2} + H_{2} O ⇌$ ?

{C O}_{3}^{2 -} + H_{2} O ⇌ {H C O}_{3}^{-} + {O H}^{-}

{C O}_{2} + H_{2} O ⇌ H_{2} {C O}_{3}

{N H}_{3} + H_{2} O ⇌ {N H}_{4} O H

H C l + H_{2} O ⇌ {C l}^{-} + H_{3} O^{+}

$C a C O_{3}$ does not dissolve in water, but in the presence of $C O_{2}$ it dissolves to form $^{'} X^{'}$

$^{'} X^{'}$ is

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