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Chemistry

The acidic gas produced when lead nitrate is heated is :

  1. PbO
  2. NO₂
  3. MgO
  4. N₂O

Chemical Reaction

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Answer

Reason — When lead nitrate (Pb(NO₃)₂) is heated, it undergoes decomposition to form lead(II) oxide (PbO), nitrogen dioxide (NO₂), and oxygen (O₂). Nitrogen dioxide (NO₂) is a reddish brown acidic gas produced during this reaction.

2Pb(NO3​)2​(s) → ​2PbO(s) + 4NO2​(g) + O2​(g)

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