Which of the following reactions is taking place resulting in discolouration of marble of the buildings like Taj Mahal?

C a C O_{3} + H_{2} S O_{4} ⟶ C a S O_{4} + H_{2} O + C O_{2}

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C a C O_{3} + H C l ⟶ C a C l_{2} + H_{2} O + C O_{2}

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C a C O_{3} + H_{2} O ⟶ C a {(O H)}_{2} + C O_{2}

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C a C O_{3} ⟶ C a O + C O_{2}

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Solution

The correct option is A $C a C O_{3} + H_{2} S O_{4} ⟶ C a S O_{4} + H_{2} O + C O_{2}$
Acid rain is the state when the pH of rain falls below 5.6. Acid rain damages the buildings and statues as they dissolve and corrodes the heavy metals. This happens when sulphuric acid nitric acids in the polluted air react with calcite in marble, the calcite dissolves. It also dissolves metals from soils, rocks and sediments.

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Similar questions

C a C O_{3} + H C l \to C a C l_{2} + C O_{2} ↑ + H_{2} O

N a + H_{2} O \to N a O H + H_{2} ↑

(N H_{4})_{2} S O_{4} + C a (O H)_{2} \to C a S O_{4} + N H_{3} ↑ + H_{2} O

H g (N O_{3})_{2} \to H g + N O_{2} ↑ + O_{2} ↑

P b_{3} O_{4} + H C l \to P b C l_{2} + C l_{2} ↑ + H_{2} O

C a O C l_{2} + H_{2} O + C O_{2} ⟶ C a C O_{3} + C a C l_{2} + H O C l

C a C O_{3}

C O_{2}

C a C O_{3} + 2 H C l \to C a C l_{2} + H_{2} O + C O_{2}

C a C O_{3} = 100 u, H C l = 36.5 u C O_{2} = 44 u)

Which type of reaction is this? (Include subcategory if applicable)

Ca(OH)₂ + CO₂ ----> CaCO₃ + H₂O

2 {KClO}_{3} (s) \overset{∆}{\to} 2 KCl (s) + 3 O_{2} ↑

C a {CO}_{3} (s) \overset{∆}{\to} C a O (s) + {CO}_{2} ↑

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