Short answerEasy1 mark
3(iv)
Give one significant observation when:
lead nitrate is heated in a test tube.
Topic: Practical tests and observations
Previous-year question practice database
Answer
Exam answer
Reddish-brown NO₂ fumes are evolved and a yellow PbO residue remains.
Explanation
2Pb(NO₃)₂ → 2PbO + 4NO₂ + O₂.
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