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The marble statue often slowly correded ...

The marble statue often slowly correded when kept in open for a long time. Assign a suitable explanation.

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`SO_(2), NO_(2)` gases are released into the atmosphere from various sources. These dissolve in rain water to give acid which corrode marble status.
`2SO_(2)+O_(2) to 2SO_(3),H_(2)O+SO_(3) to H_(2)SO_(4)`
`2NO_(2)+H_(2)O to 2HNO_(3)`
`CaCO_(3)+H_(2)SO_(4) to CaSO_(4)+H_(2)O+CO_(2)`
`CaCO_(3)+2HNO_(3) to Ca(NO_(3))_(2)+H_(2)O+CO_(2)`
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CPC CAMBRIDGE PUBLICATION-CHEMICAL REACTIONS AND EQUATIONS-ADDITIONAL QUESTIONS (Anwers the following questions)
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  4. Why do gold and silver do not corrode ?

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  10. Why does a copper vessel devlop with green coating in rainy season ?

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  11. Why is hydrogen proxide kept in coloured bottles ?

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  12. Mention any two factors which influence the rate of the reaction.

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  13. Ahmad took a magnesium ribbon and burned it on a flame. The white powd...

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  14. An iron knife kept dipped in a blue copper sulphate solution turns the...

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  15. Identify the reducing agent in the following reaction : Fe(2)O(3)+3C...

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  16. The marble statue often slowly correded when kept in open for a long t...

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  17. Give one example of a combination reaction in which an element combine...

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  18. Name the type of chemical reaction represented by the following equati...

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  19. Write the chemical equation of the reaction with an example each in wh...

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