In the estimation of carbon and hydrogen, if the substance also contains halogens, then near the exit, it is placed:

In the estimation of carbon and hydrogen, if the substance also contai

1.	In the estimation of carbon and hydrogen, if the substance also contains halogens, then near the exit, it is placed:
Answer» a ROLL of SILVER a LAYER of LEAD chromate a layer of lead chromate both, a roll of silver and a layer of lead chromate Answer :C