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Question
Give reasons for the following. Give the chemical equation wherever required.
A glowing splint reignites in the presence of the gas evolved on heating of lead nitrate.
Chemical Equations/Structures
Give Reasons
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Solution
Thermal decomposition of lead nitrate releases oxygen gas (O2), which is a strong supporter of combustion and causes a glowing splint to burst into flame.
\[\ce{2Pb(NO3)2 (s) ->[\Delta] 2PbO (s) + 4NO2 (g) + O2 (g)}\]
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Chapter 13: Practical Work - EXERCISE [Page 282]
