When lead nitrate is heated, it decomposes to form lead monoxide (PbO), nitrogen dioxide (NOâ‚‚), and oxygen (Oâ‚‚). The brown gas seen during the reaction is:
If 1 is added to each odd digit and 1 is subtracted from each even digit in the number 8436152, then what will be the difference between the last and the first digits from the left in the number thus formed?