Question

a metal nitrate on heating gives yellowish brown metal oxide along with brown gas B and a colourless gas its aqua solution of a on reaction with potassium iodine form yellow precipitate of compound identify a b c and d

Answer 1

Answer:

A...lead nitrate

B... nitrogen dioxide

C... OXYGEN

D...LEAD IODIDE

Answer 2

$\huge\bold{HEY:)-}$

A= leadnitrate, B= nitrogen dioxide gas, C = oxygen gas , D = leadiodide. The first reaction is a thermal decomposition reaction and 2nd one is double decomposition reaction.