State one relevant observation for the following :
Lead nitrate solution is treated with sodium hydroxide solution drop wise till it is excess.
ppt. of lead hydroxide is observed when excess of sodium hydroxide solution is added to lead nitrate.
State one relevant observation for each of the following:
At the anode, when molten lead bromide is electrolyzed using graphite electrodes.
State one relevant observation for the following:
Lead nitrate solution is mixed with dilute hydrochloric acid and heated.
State one relevant observation for the following:
Anhydrous calcium chloride is exposed to air for some time.
State one relevant observation for the following:
Barium chloride solution is slowly added to sodium sulphate solution.