A key idea promoted in Asoka's Edicts was

In financial aspects, a depression is a sustained, long haul downturn in monetary movement in one or more economies. it is a more extreme monetary downturn than a recession, which is a slowdown in financial action through the span of a typical business cycle. a depression is an irregular and extreme type of recession. so depression is always followed by recession but it is not correct to state that a depression always follow a recession.

The correct answer is nacl and br2. chlorine gas is more active than the bromine and for that reason, the bromine will be displaced by the chlorine that makes the solution turn to brown colour. this is one of the best example of "halogen displacement".hope this ! god bless-vf