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प्रश्न
Why do fire flies glow at night ?
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उत्तर
Fire flies are associated with certain protein. In the presence of a enzyme, the protein undergoes aerial oxidation. The reaction is accompanied by emission of light. As a result, fire flies glow at night.
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संबंधित प्रश्न
Why it is necessary to balance a chemical equation ?
Differentiate between:
Reactants and products.
Differentiate between:
A balanced and an unbalanced chemical equation.
Balance the following equation. Also name the products formed.
`CO + O_2 → CO_2`
Balance the following equation. Also name the products formed.
`FeCI_2 + CI_2 → Fe CI_3`
Write a balanced molecular equation for the following word equation:
\[\ce{Zinc + sulphuric acid->Zinc sulphate + hydrogen}\]
Write a balanced molecular equation for the following word equation:
\[\ce{Lead nitrate + sodium chloride->Sodium nitrate + lead chloride}\]
Balance the following equation:
\[\ce{CaO + HCl->CaCl2 + H2O}\]
Balance the following equation:
\[\ce{ZnO + NaOH->Na2ZnO2 + H2O}\]
Underline the incorrectly balanced compound equation and rewrite the correct equation.
\[\ce{ZnO + 3NaOH->Na2ZnO2 + H2O}\]\
Balance the following important equation:
NaCl + H2SO4 → Na2SO4 + HCl
Balance the following important equation:
NH3 + O2 → N2 + H2O (burning of NH3)
Balance the following important equation:
NH4OH + H2SO4 → (NH4)2SO4 + H2O
Balance the following important equation:
C + H2SO4 (conc.) → CO2 + H2O + SO2
In a chemical reaction between sulphuric acid and barium chloride solution the white precipitates formed are of:
Why is it important to balance a skeletal chemical equation?
Write a balanced chemical equation of the following reaction and also classify them.
Lead acetate solution is treated with dilute hydrochloric acid to form lead chloride and acetic acid solution.
Complete and balance the following equation:
\[\ce{C2H4Br2 +alcoholic KOH ->[\Delta]}\]
