On heating, lead nitrate in a boiling tube, lead oxide, oxygen gas and a brown gas ‘X’ is formed.
(i) Write a balanced chemical equation of the reaction.
(ii) identify the brown gas ‘X’ is evolved and identify the type of reaction.
( iii) Give an example of double displacement reaction.
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i) 2Pb(NO3)2-2PbO+4NO2+O2
The brown gas X is Nitrogen Dioxide and the type of reaction is Thermal Decomposition Reaction
Na2SO4+BaCl-NaCl+BaSO4
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Answer: 1) 2Pb(NO3)2----------->2PbO+O2↑+4NO2↑
2) 'X': NO2 (Brown gas formed) and decomposition reaction
3) H2SO4+NaCl-------->Na2SO4+HCl
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