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प्रश्न
What happens when
Lead nitrate solution treated with calcium chloride solution and products are heated and cooled.
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उत्तर
When lead nitrate solution is treated with calcium chloride solution it forms white ppt. of lead chloride and calcium nitrate
CaCl2(s) → Ca2+(aq) + Cl-(aq)
\[\ce{Pb(NO3)2(aq) -> Pb^{2+}(aq) + NO^{2-}_{3}(aq)}\]
\[\ce{Pb^{2+}(aq) + NO^{2-}_{3}(aq) + Ca^{2+}(aq) + Cl-(aq) -> PbCl2 + Ca(NO3)2}\]
On further heating and cooling the products, calcium nitrate decomposes upon heating to release nitrogen dioxide:
2Ca(NO3)2 → 2CaO + 4NO2 + O2
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संबंधित प्रश्न
Convert hydrochloric acid to nascent chlorine.
Name the following:
Two solutions that yields white precipitates, when treated with hydrogen chloride or hydrochloric acid.
Explain, why silver nitrate crystals are dissolved in distilled water and not in tap to prepare silver nitrate solution as a laboratory reagent.
Give one chemical test to distinguish between dilute hydrochloric acid and dilute sulphuric acid.
State one appropriate observation of the following:
A few drops of dilute hydrochloric acid are added to silver nitrate solution, followed by the addition of ammonium hydroxide solution.
State your observation when dilute hydrochloric acid is added to lead nitrate solution and the mixture is heated.
State the effect of adding a small amount of : (a) sodium hydroxide (b) ammonium hydroxide followed by an excess in case to samples of the salt solutions.
Lead nitrate [ small amount ________ in excess ________ ]
Distinguish between the following:
Dilute HCl and dilute HNO3 [using silver nitrate solution]
Convert the following reaction into a balanced chemical equation:
Ferrous sulphide to hydrogen sulphide using hydrochloric acid.
Write an equation for the reaction of hydrochloric acid on manganese (IV) oxide.
Convert Hydrochloric acid to nascent chlorine.
