Some reactions of $NO _2$ relevant to photochemical smog formation are
Identify $A , B , X$ and $Y$
20 mL of sodium iodide solution gave 4.74 g silver iodide when treated with excess of silver nitrate solution. The molarity of the sodium iodide solution is _____ M. (Nearest Integer value) (Given : Na = 23, I = 127, Ag = 108, N = 14, O = 16 g mol$^{-1}$)
There is a number of factors that contribute to the pollution of the environment. Some of the major causes of atmospheric pollution are given below -