Question

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19. A metal nitrate A on heating gives yellowish brown coloured metal oxide along with brown
gas B and a colourless gas C. Aqueous solution of A on reaction with potassium iodide forms
a yellow precipitate of compound D. Identify A, B, C and D. Give the chemical equation
which represent the reaction between the aqueous solution of A and potassium iodide.​

Answer 1

Answer:

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Answer 2

Answer:

The metal nitrate $(A)$ is lead nitrate $(Pb(NO_3)_2)$ on heating it produces lead oxide, Nitrogen dioxide $(B)$ and oxygen gas $(C)$

$1] \:2Pb(NO_3)_2 \longrightarrow 2PbO+4NO_2+O_3$

on reaction with potassium iodide mixture of lead iodide and potassium nitrate forms

$2] \:Pb(NO_3)_2+2KI\longrightarrow PbO_2+2kNO_3$