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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 8

Underline the Incorrectly Balanced Compound Equation and Rewrite the Correct Equation. \\Ce{4p + 4o2->2p2o5}\

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प्रश्न

Underline the incorrectly balanced compound equation and rewrite the correct equation.

\[\ce{4P + 4O2->2P2O5}\]

एक पंक्ति में उत्तर
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उत्तर

Correct equation is:
\[\ce{4P + 5O2->2P2O5}\]

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अध्याय 5: Language of Chemistry - Objective type questions

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विराफ जे दलाल New Simplified Middle School Chemistry [English] Class 8
अध्याय 5 Language of Chemistry
Objective type questions | Q 4.02

संबंधित प्रश्न

Write balanced chemical equations for the following word equation:

Calcium oxide + water → Calcium hydroxide


Balance the following equation. Also name the products formed.

Ag +S          →   `Ag_2 S`


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`PbCO _3   →  PbO +CO_2`   


Balance the following equation:

\[\ce{NO + O2->NO2}\]


Balance the following equation:

\[\ce{ZnS + O2->ZnO + SO2}\]


Underline the incorrectly balanced compound equation and rewrite the correct equation.

\[\ce{Fe2O3 + 2H2->2Fe + 3H2O}\]


Write the balanced chemical equations for the following reactions and identify the type of reaction in each case.

  1. Nitrogen gas is treated with hydrogen gas in the presence of a catalyst at 773 K to form ammonia gas.
  2. Potassium hydroxide solution is treated with acetic acid to form potassium acetate and water.
  3. Ethanol is warmed with ethanoic acid to form ethyl acetate in the presence of concentrated H2SO4.
  4. Ethene is burnt in the presence of oxygen to form carbon dioxide, water and release heat and light. 

Complete the missing component /variable  given as x and y in the following reactions

`"Zn"("s") + "H"_2"SO"_4("aq") -> "ZnSO"_4(x) + "H"_2("y")`


Write the balanced chemical equation for the following reaction

Sodium carbonate on reaction with hydrochloric acid in equal molar concentrations gives sodium chloride and sodium hydrogencarbonate.


Identify the types of reaction mentioned above. Give one example for type in the form of a balanced chemical equation.


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